Home / 394,083.08-591,207.69-127,822.88

Finding the Fourth Proportional to 394,083.08, 591,207.69 and 127,822.88

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Solution

The fourth proportional to 394,083.08, 591,207.69 and 127,822.88 is: 191,761.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,083.08 : 591,207.69 = 127,822.88 : x
  2. Step 2: Convert to fraction form
    394,083.08/591,207.69 = 127,822.88/x
  3. Step 3: Cross multiply
    394,083.08x = 591,207.69 × 127,822.88
  4. Step 4: Simplify right side
    394,083.08x = 75,569,869,613.95
  5. Step 5: Solve for x
    x = 75,569,869,613.95/394,083.08
  6. Step 6: Final answer
    x = 191,761.26

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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.