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Finding the Fourth Proportional to 327,099.61, 451,331.29 and 191,107.29

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Solution

The fourth proportional to 327,099.61, 451,331.29 and 191,107.29 is: 263,689.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,099.61 : 451,331.29 = 191,107.29 : x
  2. Step 2: Convert to fraction form
    327,099.61/451,331.29 = 191,107.29/x
  3. Step 3: Cross multiply
    327,099.61x = 451,331.29 × 191,107.29
  4. Step 4: Simplify right side
    327,099.61x = 86,252,699,724.10
  5. Step 5: Solve for x
    x = 86,252,699,724.10/327,099.61
  6. Step 6: Final answer
    x = 263,689.40

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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.