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Finding the Fourth Proportional to 719,400.65, 992,537.13 and 512,701.61

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Solution

The fourth proportional to 719,400.65, 992,537.13 and 512,701.61 is: 707,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,400.65 : 992,537.13 = 512,701.61 : x
  2. Step 2: Convert to fraction form
    719,400.65/992,537.13 = 512,701.61/x
  3. Step 3: Cross multiply
    719,400.65x = 992,537.13 × 512,701.61
  4. Step 4: Simplify right side
    719,400.65x = 508,875,384,535.78
  5. Step 5: Solve for x
    x = 508,875,384,535.78/719,400.65
  6. Step 6: Final answer
    x = 707,360.20

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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.