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Finding the Fourth Proportional to 366,881.20, 550,321.80 and 331,451.80

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Solution

The fourth proportional to 366,881.20, 550,321.80 and 331,451.80 is: 497,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,881.20 : 550,321.80 = 331,451.80 : x
  2. Step 2: Convert to fraction form
    366,881.20/550,321.80 = 331,451.80/x
  3. Step 3: Cross multiply
    366,881.20x = 550,321.80 × 331,451.80
  4. Step 4: Simplify right side
    366,881.20x = 182,405,151,189.24
  5. Step 5: Solve for x
    x = 182,405,151,189.24/366,881.20
  6. Step 6: Final answer
    x = 497,177.70

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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.