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Finding the Fourth Proportional to 488,772.20, 732,939.60 and 222,395.60

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Solution

The fourth proportional to 488,772.20, 732,939.60 and 222,395.60 is: 333,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,772.20 : 732,939.60 = 222,395.60 : x
  2. Step 2: Convert to fraction form
    488,772.20/732,939.60 = 222,395.60/x
  3. Step 3: Cross multiply
    488,772.20x = 732,939.60 × 222,395.60
  4. Step 4: Simplify right side
    488,772.20x = 163,002,542,105.76
  5. Step 5: Solve for x
    x = 163,002,542,105.76/488,772.20
  6. Step 6: Final answer
    x = 333,493.89

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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.