Home / 394,045.76-591,155.08-127,833.20

Finding the Fourth Proportional to 394,045.76, 591,155.08 and 127,833.20

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Solution

The fourth proportional to 394,045.76, 591,155.08 and 127,833.20 is: 191,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,045.76 : 591,155.08 = 127,833.20 : x
  2. Step 2: Convert to fraction form
    394,045.76/591,155.08 = 127,833.20/x
  3. Step 3: Cross multiply
    394,045.76x = 591,155.08 × 127,833.20
  4. Step 4: Simplify right side
    394,045.76x = 75,569,245,572.66
  5. Step 5: Solve for x
    x = 75,569,245,572.66/394,045.76
  6. Step 6: Final answer
    x = 191,777.84

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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.