Home / 394,089.21-591,216.86-127,828.97

Finding the Fourth Proportional to 394,089.21, 591,216.86 and 127,828.97

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Solution

The fourth proportional to 394,089.21, 591,216.86 and 127,828.97 is: 191,770.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,089.21 : 591,216.86 = 127,828.97 : x
  2. Step 2: Convert to fraction form
    394,089.21/591,216.86 = 127,828.97/x
  3. Step 3: Cross multiply
    394,089.21x = 591,216.86 × 127,828.97
  4. Step 4: Simplify right side
    394,089.21x = 75,574,642,260.43
  5. Step 5: Solve for x
    x = 75,574,642,260.43/394,089.21
  6. Step 6: Final answer
    x = 191,770.39

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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.