Home / 394,053.12-591,162.72-127,792.88

Finding the Fourth Proportional to 394,053.12, 591,162.72 and 127,792.88

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Solution

The fourth proportional to 394,053.12, 591,162.72 and 127,792.88 is: 191,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,053.12 : 591,162.72 = 127,792.88 : x
  2. Step 2: Convert to fraction form
    394,053.12/591,162.72 = 127,792.88/x
  3. Step 3: Cross multiply
    394,053.12x = 591,162.72 × 127,792.88
  4. Step 4: Simplify right side
    394,053.12x = 75,546,386,537.43
  5. Step 5: Solve for x
    x = 75,546,386,537.43/394,053.12
  6. Step 6: Final answer
    x = 191,716.25

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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.