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Finding the Fourth Proportional to 624,435.62, 861,721.14 and 337,955.70

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Solution

The fourth proportional to 624,435.62, 861,721.14 and 337,955.70 is: 466,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,435.62 : 861,721.14 = 337,955.70 : x
  2. Step 2: Convert to fraction form
    624,435.62/861,721.14 = 337,955.70/x
  3. Step 3: Cross multiply
    624,435.62x = 861,721.14 × 337,955.70
  4. Step 4: Simplify right side
    624,435.62x = 291,223,571,073.50
  5. Step 5: Solve for x
    x = 291,223,571,073.50/624,435.62
  6. Step 6: Final answer
    x = 466,378.86

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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.