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Finding the Fourth Proportional to 624,351.65, 861,605.28 and 337,871.72

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Solution

The fourth proportional to 624,351.65, 861,605.28 and 337,871.72 is: 466,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,351.65 : 861,605.28 = 337,871.72 : x
  2. Step 2: Convert to fraction form
    624,351.65/861,605.28 = 337,871.72/x
  3. Step 3: Cross multiply
    624,351.65x = 861,605.28 × 337,871.72
  4. Step 4: Simplify right side
    624,351.65x = 291,112,057,914.68
  5. Step 5: Solve for x
    x = 291,112,057,914.68/624,351.65
  6. Step 6: Final answer
    x = 466,262.98

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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.