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Finding the Fourth Proportional to 702,461.20, 1,053,691.80 and 525,314.20

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Solution

The fourth proportional to 702,461.20, 1,053,691.80 and 525,314.20 is: 787,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,461.20 : 1,053,691.80 = 525,314.20 : x
  2. Step 2: Convert to fraction form
    702,461.20/1,053,691.80 = 525,314.20/x
  3. Step 3: Cross multiply
    702,461.20x = 1,053,691.80 × 525,314.20
  4. Step 4: Simplify right side
    702,461.20x = 553,519,264,963.56
  5. Step 5: Solve for x
    x = 553,519,264,963.56/702,461.20
  6. Step 6: Final answer
    x = 787,971.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.