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Finding the Fourth Proportional to 683,929.38, 943,793.17 and 377,989.95

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Solution

The fourth proportional to 683,929.38, 943,793.17 and 377,989.95 is: 521,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,929.38 : 943,793.17 = 377,989.95 : x
  2. Step 2: Convert to fraction form
    683,929.38/943,793.17 = 377,989.95/x
  3. Step 3: Cross multiply
    683,929.38x = 943,793.17 × 377,989.95
  4. Step 4: Simplify right side
    683,929.38x = 356,744,333,138.64
  5. Step 5: Solve for x
    x = 356,744,333,138.64/683,929.38
  6. Step 6: Final answer
    x = 521,609.90

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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.