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Finding the Fourth Proportional to 624,384.72, 861,647.88 and 337,904.40

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Solution

The fourth proportional to 624,384.72, 861,647.88 and 337,904.40 is: 466,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,384.72 : 861,647.88 = 337,904.40 : x
  2. Step 2: Convert to fraction form
    624,384.72/861,647.88 = 337,904.40/x
  3. Step 3: Cross multiply
    624,384.72x = 861,647.88 × 337,904.40
  4. Step 4: Simplify right side
    624,384.72x = 291,154,609,902.67
  5. Step 5: Solve for x
    x = 291,154,609,902.67/624,384.72
  6. Step 6: Final answer
    x = 466,306.43

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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.