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Finding the Fourth Proportional to 331,627.20, 496,663.20 and 225,873.60

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Solution

The fourth proportional to 331,627.20, 496,663.20 and 225,873.60 is: 338,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,627.20 : 496,663.20 = 225,873.60 : x
  2. Step 2: Convert to fraction form
    331,627.20/496,663.20 = 225,873.60/x
  3. Step 3: Cross multiply
    331,627.20x = 496,663.20 × 225,873.60
  4. Step 4: Simplify right side
    331,627.20x = 112,183,104,971.52
  5. Step 5: Solve for x
    x = 112,183,104,971.52/331,627.20
  6. Step 6: Final answer
    x = 338,280.77

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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.