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Finding the Fourth Proportional to 366,918.83, 550,378.24 and 331,489.43

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Solution

The fourth proportional to 366,918.83, 550,378.24 and 331,489.43 is: 497,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.83 : 550,378.24 = 331,489.43 : x
  2. Step 2: Convert to fraction form
    366,918.83/550,378.24 = 331,489.43/x
  3. Step 3: Cross multiply
    366,918.83x = 550,378.24 × 331,489.43
  4. Step 4: Simplify right side
    366,918.83x = 182,444,565,481.39
  5. Step 5: Solve for x
    x = 182,444,565,481.39/366,918.83
  6. Step 6: Final answer
    x = 497,234.14

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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.