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Finding the Fourth Proportional to 624,960.72, 861,800.76 and 534,615.66

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Solution

The fourth proportional to 624,960.72, 861,800.76 and 534,615.66 is: 737,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,960.72 : 861,800.76 = 534,615.66 : x
  2. Step 2: Convert to fraction form
    624,960.72/861,800.76 = 534,615.66/x
  3. Step 3: Cross multiply
    624,960.72x = 861,800.76 × 534,615.66
  4. Step 4: Simplify right side
    624,960.72x = 460,732,182,095.90
  5. Step 5: Solve for x
    x = 460,732,182,095.90/624,960.72
  6. Step 6: Final answer
    x = 737,217.82

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1.5x scale

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.