Home / 394,079.88-591,202.94-127,819.72

Finding the Fourth Proportional to 394,079.88, 591,202.94 and 127,819.72

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Solution

The fourth proportional to 394,079.88, 591,202.94 and 127,819.72 is: 191,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,079.88 : 591,202.94 = 127,819.72 : x
  2. Step 2: Convert to fraction form
    394,079.88/591,202.94 = 127,819.72/x
  3. Step 3: Cross multiply
    394,079.88x = 591,202.94 × 127,819.72
  4. Step 4: Simplify right side
    394,079.88x = 75,567,394,253.98
  5. Step 5: Solve for x
    x = 75,567,394,253.98/394,079.88
  6. Step 6: Final answer
    x = 191,756.54

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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.