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Finding the Fourth Proportional to 327,191.31, 490,793.12 and 102,546.78

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Solution

The fourth proportional to 327,191.31, 490,793.12 and 102,546.78 is: 153,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,191.31 : 490,793.12 = 102,546.78 : x
  2. Step 2: Convert to fraction form
    327,191.31/490,793.12 = 102,546.78/x
  3. Step 3: Cross multiply
    327,191.31x = 490,793.12 × 102,546.78
  4. Step 4: Simplify right side
    327,191.31x = 50,329,254,102.15
  5. Step 5: Solve for x
    x = 50,329,254,102.15/327,191.31
  6. Step 6: Final answer
    x = 153,822.10

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1.5x scale

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.