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Finding the Fourth Proportional to 488,782.20, 732,954.60 and 222,405.60

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Solution

The fourth proportional to 488,782.20, 732,954.60 and 222,405.60 is: 333,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,782.20 : 732,954.60 = 222,405.60 : x
  2. Step 2: Convert to fraction form
    488,782.20/732,954.60 = 222,405.60/x
  3. Step 3: Cross multiply
    488,782.20x = 732,954.60 × 222,405.60
  4. Step 4: Simplify right side
    488,782.20x = 163,013,207,585.76
  5. Step 5: Solve for x
    x = 163,013,207,585.76/488,782.20
  6. Step 6: Final answer
    x = 333,508.89

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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.