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Finding the Fourth Proportional to 327,897.20, 492,306.60 and 203,481.20

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Solution

The fourth proportional to 327,897.20, 492,306.60 and 203,481.20 is: 305,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,897.20 : 492,306.60 = 203,481.20 : x
  2. Step 2: Convert to fraction form
    327,897.20/492,306.60 = 203,481.20/x
  3. Step 3: Cross multiply
    327,897.20x = 492,306.60 × 203,481.20
  4. Step 4: Simplify right side
    327,897.20x = 100,175,137,735.92
  5. Step 5: Solve for x
    x = 100,175,137,735.92/327,897.20
  6. Step 6: Final answer
    x = 305,507.76

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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.