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Finding the Fourth Proportional to 629,660.40, 944,490.60 and 346,225.20

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Solution

The fourth proportional to 629,660.40, 944,490.60 and 346,225.20 is: 519,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,660.40 : 944,490.60 = 346,225.20 : x
  2. Step 2: Convert to fraction form
    629,660.40/944,490.60 = 346,225.20/x
  3. Step 3: Cross multiply
    629,660.40x = 944,490.60 × 346,225.20
  4. Step 4: Simplify right side
    629,660.40x = 327,006,446,883.12
  5. Step 5: Solve for x
    x = 327,006,446,883.12/629,660.40
  6. Step 6: Final answer
    x = 519,337.80

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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.