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Finding the Fourth Proportional to 629,862.60, 944,793.90 and 377,920.20

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Solution

The fourth proportional to 629,862.60, 944,793.90 and 377,920.20 is: 566,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,862.60 : 944,793.90 = 377,920.20 : x
  2. Step 2: Convert to fraction form
    629,862.60/944,793.90 = 377,920.20/x
  3. Step 3: Cross multiply
    629,862.60x = 944,793.90 × 377,920.20
  4. Step 4: Simplify right side
    629,862.60x = 357,056,699,646.78
  5. Step 5: Solve for x
    x = 357,056,699,646.78/629,862.60
  6. Step 6: Final answer
    x = 566,880.30

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Double scale
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Similar ratio
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1.5x scale

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.