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Finding the Fourth Proportional to 629,905.30, 944,915.55 and 255,850.90

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Solution

The fourth proportional to 629,905.30, 944,915.55 and 255,850.90 is: 383,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,905.30 : 944,915.55 = 255,850.90 : x
  2. Step 2: Convert to fraction form
    629,905.30/944,915.55 = 255,850.90/x
  3. Step 3: Cross multiply
    629,905.30x = 944,915.55 × 255,850.90
  4. Step 4: Simplify right side
    629,905.30x = 241,757,493,891.50
  5. Step 5: Solve for x
    x = 241,757,493,891.50/629,905.30
  6. Step 6: Final answer
    x = 383,799.75

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Half scale
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Double scale
Find fourth proportional to 629,906.30, 944,917.05 and 255,851.90
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.