Home / 394,081.83-591,205.82-127,821.63

Finding the Fourth Proportional to 394,081.83, 591,205.82 and 127,821.63

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Solution

The fourth proportional to 394,081.83, 591,205.82 and 127,821.63 is: 191,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,081.83 : 591,205.82 = 127,821.63 : x
  2. Step 2: Convert to fraction form
    394,081.83/591,205.82 = 127,821.63/x
  3. Step 3: Cross multiply
    394,081.83x = 591,205.82 × 127,821.63
  4. Step 4: Simplify right side
    394,081.83x = 75,568,890,938.78
  5. Step 5: Solve for x
    x = 75,568,890,938.78/394,081.83
  6. Step 6: Final answer
    x = 191,759.39

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1.5x scale

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.