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Finding the Fourth Proportional to 426,447.38, 588,481.96 and 235,456.67

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Solution

The fourth proportional to 426,447.38, 588,481.96 and 235,456.67 is: 324,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,447.38 : 588,481.96 = 235,456.67 : x
  2. Step 2: Convert to fraction form
    426,447.38/588,481.96 = 235,456.67/x
  3. Step 3: Cross multiply
    426,447.38x = 588,481.96 × 235,456.67
  4. Step 4: Simplify right side
    426,447.38x = 138,561,998,536.98
  5. Step 5: Solve for x
    x = 138,561,998,536.98/426,447.38
  6. Step 6: Final answer
    x = 324,921.68

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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.