Home / 394,088.58-591,215.94-127,828.38

Finding the Fourth Proportional to 394,088.58, 591,215.94 and 127,828.38

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Solution

The fourth proportional to 394,088.58, 591,215.94 and 127,828.38 is: 191,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,088.58 : 591,215.94 = 127,828.38 : x
  2. Step 2: Convert to fraction form
    394,088.58/591,215.94 = 127,828.38/x
  3. Step 3: Cross multiply
    394,088.58x = 591,215.94 × 127,828.38
  4. Step 4: Simplify right side
    394,088.58x = 75,574,175,840.38
  5. Step 5: Solve for x
    x = 75,574,175,840.38/394,088.58
  6. Step 6: Final answer
    x = 191,769.51

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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.