Home / 723,918.23-998,995.79-397,233.89

Finding the Fourth Proportional to 723,918.23, 998,995.79 and 397,233.89

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Solution

The fourth proportional to 723,918.23, 998,995.79 and 397,233.89 is: 548,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,918.23 : 998,995.79 = 397,233.89 : x
  2. Step 2: Convert to fraction form
    723,918.23/998,995.79 = 397,233.89/x
  3. Step 3: Cross multiply
    723,918.23x = 998,995.79 × 397,233.89
  4. Step 4: Simplify right side
    723,918.23x = 396,834,981,769.15
  5. Step 5: Solve for x
    x = 396,834,981,769.15/723,918.23
  6. Step 6: Final answer
    x = 548,176.53

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Double scale
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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.