The problem asks to solve four division problems involving decimal numbers. The problems are: $4.08 \div 1.2 = ?$ $3.483 \div 0.05 = ?$ $5.439 \div 0.006 = ?$ $74.7 \div 0.9 = ?$

1. Problem Description

The problem asks to solve four division problems involving decimal numbers. The problems are:

$4.08 \div 1.2 = ?$

$3.483 \div 0.05 = ?$

$5.439 \div 0.006 = ?$

$74.7 \div 0.9 = ?$

2. Solution Steps

First, $4.08 \div 1.2$:

To perform this division, we multiply both the dividend and divisor by 10 to remove the decimal in the divisor.

$4.08 \div 1.2 = (4.08 \times 10) \div (1.2 \times 10) = 40.8 \div 12$

Now we perform the division:

$40.8 \div 12 = 3.4$

Second, $3.483 \div 0.05$:

To perform this division, we multiply both the dividend and divisor by 100 to remove the decimal in the divisor.

$3.483 \div 0.05 = (3.483 \times 100) \div (0.05 \times 100) = 348.3 \div 5$

Now we perform the division:

$348.3 \div 5 = 69.66$

Third, $5.439 \div 0.006$:

To perform this division, we multiply both the dividend and divisor by 1000 to remove the decimal in the divisor.

$5.439 \div 0.006 = (5.439 \times 1000) \div (0.006 \times 1000) = 5439 \div 6$

Now we perform the division:

$5439 \div 6 = 906.5$

Fourth, $74.7 \div 0.9$:

To perform this division, we multiply both the dividend and divisor by 10 to remove the decimal in the divisor.

$74.7 \div 0.9 = (74.7 \times 10) \div (0.9 \times 10) = 747 \div 9$

Now we perform the division:

$747 \div 9 = 83$

3. Final Answer

$4.08 \div 1.2 = 3.4$

$3.483 \div 0.05 = 69.66$

$5.439 \div 0.006 = 906.5$

$74.7 \div 0.9 = 83$