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Finding the Fourth Proportional to 526,714.92, 726,861.24 and 284,992.20

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Solution

The fourth proportional to 526,714.92, 726,861.24 and 284,992.20 is: 393,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,714.92 : 726,861.24 = 284,992.20 : x
  2. Step 2: Convert to fraction form
    526,714.92/726,861.24 = 284,992.20/x
  3. Step 3: Cross multiply
    526,714.92x = 726,861.24 × 284,992.20
  4. Step 4: Simplify right side
    526,714.92x = 207,149,783,882.33
  5. Step 5: Solve for x
    x = 207,149,783,882.33/526,714.92
  6. Step 6: Final answer
    x = 393,286.34

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.