Home / 394,189.11-591,275.34-127,949.19

Finding the Fourth Proportional to 394,189.11, 591,275.34 and 127,949.19

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Solution

The fourth proportional to 394,189.11, 591,275.34 and 127,949.19 is: 191,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,189.11 : 591,275.34 = 127,949.19 : x
  2. Step 2: Convert to fraction form
    394,189.11/591,275.34 = 127,949.19/x
  3. Step 3: Cross multiply
    394,189.11x = 591,275.34 × 127,949.19
  4. Step 4: Simplify right side
    394,189.11x = 75,653,200,819.97
  5. Step 5: Solve for x
    x = 75,653,200,819.97/394,189.11
  6. Step 6: Final answer
    x = 191,921.08

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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.