Home / 394,070.65-591,251.78-127,839.85

Finding the Fourth Proportional to 394,070.65, 591,251.78 and 127,839.85

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Solution

The fourth proportional to 394,070.65, 591,251.78 and 127,839.85 is: 191,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,070.65 : 591,251.78 = 127,839.85 : x
  2. Step 2: Convert to fraction form
    394,070.65/591,251.78 = 127,839.85/x
  3. Step 3: Cross multiply
    394,070.65x = 591,251.78 × 127,839.85
  4. Step 4: Simplify right side
    394,070.65x = 75,585,538,228.23
  5. Step 5: Solve for x
    x = 75,585,538,228.23/394,070.65
  6. Step 6: Final answer
    x = 191,807.07

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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.