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Finding the Fourth Proportional to 488,730.20, 732,749.70 and 222,618.20

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Solution

The fourth proportional to 488,730.20, 732,749.70 and 222,618.20 is: 333,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,730.20 : 732,749.70 = 222,618.20 : x
  2. Step 2: Convert to fraction form
    488,730.20/732,749.70 = 222,618.20/x
  3. Step 3: Cross multiply
    488,730.20x = 732,749.70 × 222,618.20
  4. Step 4: Simplify right side
    488,730.20x = 163,123,419,264.54
  5. Step 5: Solve for x
    x = 163,123,419,264.54/488,730.20
  6. Step 6: Final answer
    x = 333,769.88

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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.