Home / 394,084.10-591,212.55-127,799.30

Finding the Fourth Proportional to 394,084.10, 591,212.55 and 127,799.30

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Solution

The fourth proportional to 394,084.10, 591,212.55 and 127,799.30 is: 191,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,084.10 : 591,212.55 = 127,799.30 : x
  2. Step 2: Convert to fraction form
    394,084.10/591,212.55 = 127,799.30/x
  3. Step 3: Cross multiply
    394,084.10x = 591,212.55 × 127,799.30
  4. Step 4: Simplify right side
    394,084.10x = 75,556,550,041.22
  5. Step 5: Solve for x
    x = 75,556,550,041.22/394,084.10
  6. Step 6: Final answer
    x = 191,726.97

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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.