Use four unit multipliers to convert 630 square yards into square inches

We are asked to determine the unit multipliers in order for us to convert 630 square yards to into square inches. Well, first we need to convert square yards to square feet and secondly, we convert square feet to square inches.

square yards - > square feet - > square inches

We also take note the following:

1 yard = 3 feet

1 foot = 12 inches

The solution in converting the unit is shown below:

630 yards² * (3 feet / 1 yard) ² = 5670 feet²

5670 feet² * (12 inches / 1 foot) ² = 816,480 inches²

The answer is 816,480 inches².