Home / 723,919.23-998,997.16-397,234.89

Finding the Fourth Proportional to 723,919.23, 998,997.16 and 397,234.89

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Solution

The fourth proportional to 723,919.23, 998,997.16 and 397,234.89 is: 548,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,919.23 : 998,997.16 = 397,234.89 : x
  2. Step 2: Convert to fraction form
    723,919.23/998,997.16 = 397,234.89/x
  3. Step 3: Cross multiply
    723,919.23x = 998,997.16 × 397,234.89
  4. Step 4: Simplify right side
    723,919.23x = 396,836,526,962.91
  5. Step 5: Solve for x
    x = 396,836,526,962.91/723,919.23
  6. Step 6: Final answer
    x = 548,177.91

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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.