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Finding the Fourth Proportional to 338,234.40, 507,481.20 and 332,920.80

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Solution

The fourth proportional to 338,234.40, 507,481.20 and 332,920.80 is: 499,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,234.40 : 507,481.20 = 332,920.80 : x
  2. Step 2: Convert to fraction form
    338,234.40/507,481.20 = 332,920.80/x
  3. Step 3: Cross multiply
    338,234.40x = 507,481.20 × 332,920.80
  4. Step 4: Simplify right side
    338,234.40x = 168,951,047,088.96
  5. Step 5: Solve for x
    x = 168,951,047,088.96/338,234.40
  6. Step 6: Final answer
    x = 499,508.76

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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.