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Finding the Fourth Proportional to 327,272.54, 451,691.54 and 189,431.48

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Solution

The fourth proportional to 327,272.54, 451,691.54 and 189,431.48 is: 261,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,272.54 : 451,691.54 = 189,431.48 : x
  2. Step 2: Convert to fraction form
    327,272.54/451,691.54 = 189,431.48/x
  3. Step 3: Cross multiply
    327,272.54x = 451,691.54 × 189,431.48
  4. Step 4: Simplify right side
    327,272.54x = 85,564,593,720.06
  5. Step 5: Solve for x
    x = 85,564,593,720.06/327,272.54
  6. Step 6: Final answer
    x = 261,447.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.