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Finding the Fourth Proportional to 624,737.40, 935,793.90 and 519,761.40

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Solution

The fourth proportional to 624,737.40, 935,793.90 and 519,761.40 is: 778,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,737.40 : 935,793.90 = 519,761.40 : x
  2. Step 2: Convert to fraction form
    624,737.40/935,793.90 = 519,761.40/x
  3. Step 3: Cross multiply
    624,737.40x = 935,793.90 × 519,761.40
  4. Step 4: Simplify right side
    624,737.40x = 486,389,547,575.46
  5. Step 5: Solve for x
    x = 486,389,547,575.46/624,737.40
  6. Step 6: Final answer
    x = 778,550.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.