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Finding the Fourth Proportional to 327,379.88, 451,788.90 and 193,243.88

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Solution

The fourth proportional to 327,379.88, 451,788.90 and 193,243.88 is: 266,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,379.88 : 451,788.90 = 193,243.88 : x
  2. Step 2: Convert to fraction form
    327,379.88/451,788.90 = 193,243.88/x
  3. Step 3: Cross multiply
    327,379.88x = 451,788.90 × 193,243.88
  4. Step 4: Simplify right side
    327,379.88x = 87,305,439,976.93
  5. Step 5: Solve for x
    x = 87,305,439,976.93/327,379.88
  6. Step 6: Final answer
    x = 266,679.31

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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.