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Finding the Fourth Proportional to 629,944.80, 944,917.20 and 378,002.40

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Solution

The fourth proportional to 629,944.80, 944,917.20 and 378,002.40 is: 567,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,944.80 : 944,917.20 = 378,002.40 : x
  2. Step 2: Convert to fraction form
    629,944.80/944,917.20 = 378,002.40/x
  3. Step 3: Cross multiply
    629,944.80x = 944,917.20 × 378,002.40
  4. Step 4: Simplify right side
    629,944.80x = 357,180,969,401.28
  5. Step 5: Solve for x
    x = 357,180,969,401.28/629,944.80
  6. Step 6: Final answer
    x = 567,003.60

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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.