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Finding the Fourth Proportional to 366,910.20, 550,365.30 and 331,480.80

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Solution

The fourth proportional to 366,910.20, 550,365.30 and 331,480.80 is: 497,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,910.20 : 550,365.30 = 331,480.80 : x
  2. Step 2: Convert to fraction form
    366,910.20/550,365.30 = 331,480.80/x
  3. Step 3: Cross multiply
    366,910.20x = 550,365.30 × 331,480.80
  4. Step 4: Simplify right side
    366,910.20x = 182,435,529,936.24
  5. Step 5: Solve for x
    x = 182,435,529,936.24/366,910.20
  6. Step 6: Final answer
    x = 497,221.20

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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.