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Finding the Fourth Proportional to 621,737.80, 932,606.70 and 607,913.80

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Solution

The fourth proportional to 621,737.80, 932,606.70 and 607,913.80 is: 911,870.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,737.80 : 932,606.70 = 607,913.80 : x
  2. Step 2: Convert to fraction form
    621,737.80/932,606.70 = 607,913.80/x
  3. Step 3: Cross multiply
    621,737.80x = 932,606.70 × 607,913.80
  4. Step 4: Simplify right side
    621,737.80x = 566,944,482,902.46
  5. Step 5: Solve for x
    x = 566,944,482,902.46/621,737.80
  6. Step 6: Final answer
    x = 911,870.70

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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.