Home / 394,115.72-591,186.36-154,220.24

Finding the Fourth Proportional to 394,115.72, 591,186.36 and 154,220.24

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Solution

The fourth proportional to 394,115.72, 591,186.36 and 154,220.24 is: 231,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,115.72 : 591,186.36 = 154,220.24 : x
  2. Step 2: Convert to fraction form
    394,115.72/591,186.36 = 154,220.24/x
  3. Step 3: Cross multiply
    394,115.72x = 591,186.36 × 154,220.24
  4. Step 4: Simplify right side
    394,115.72x = 91,172,902,323.93
  5. Step 5: Solve for x
    x = 91,172,902,323.93/394,115.72
  6. Step 6: Final answer
    x = 231,335.36

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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.