Finding the Fourth Proportional to 1,912,973.40, 2,639,871.12 and 1,053,613.68
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Solution
The fourth proportional to 1,912,973.40, 2,639,871.12 and 1,053,613.68 is: 1,453,969.16
Step by Step Solution
- Step 1: Write the proportion equation
1,912,973.40 : 2,639,871.12 = 1,053,613.68 : x - Step 2: Convert to fraction form
1,912,973.40/2,639,871.12 = 1,053,613.68/x - Step 3: Cross multiply
1,912,973.40x = 2,639,871.12 × 1,053,613.68 - Step 4: Simplify right side
1,912,973.40x = 2,781,404,325,468.92 - Step 5: Solve for x
x = 2,781,404,325,468.92/1,912,973.40 - Step 6: Final answer
x = 1,453,969.16
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.