Home / 394,067.40-591,246.90-127,836.60

Finding the Fourth Proportional to 394,067.40, 591,246.90 and 127,836.60

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Solution

The fourth proportional to 394,067.40, 591,246.90 and 127,836.60 is: 191,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,067.40 : 591,246.90 = 127,836.60 : x
  2. Step 2: Convert to fraction form
    394,067.40/591,246.90 = 127,836.60/x
  3. Step 3: Cross multiply
    394,067.40x = 591,246.90 × 127,836.60
  4. Step 4: Simplify right side
    394,067.40x = 75,582,993,456.54
  5. Step 5: Solve for x
    x = 75,582,993,456.54/394,067.40
  6. Step 6: Final answer
    x = 191,802.20

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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.