Finding the Fourth Proportional to 516,576.69, 712,871.01 and 287,127.99
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Solution
The fourth proportional to 516,576.69, 712,871.01 and 287,127.99 is: 396,233.95
Step by Step Solution
- Step 1: Write the proportion equation
516,576.69 : 712,871.01 = 287,127.99 : x - Step 2: Convert to fraction form
516,576.69/712,871.01 = 287,127.99/x - Step 3: Cross multiply
516,576.69x = 712,871.01 × 287,127.99 - Step 4: Simplify right side
516,576.69x = 204,685,220,230.57 - Step 5: Solve for x
x = 204,685,220,230.57/516,576.69 - Step 6: Final answer
x = 396,233.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.