Home / 394,301.76-591,431.37-225,716.86

Finding the Fourth Proportional to 394,301.76, 591,431.37 and 225,716.86

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Solution

The fourth proportional to 394,301.76, 591,431.37 and 225,716.86 is: 338,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,301.76 : 591,431.37 = 225,716.86 : x
  2. Step 2: Convert to fraction form
    394,301.76/591,431.37 = 225,716.86/x
  3. Step 3: Cross multiply
    394,301.76x = 591,431.37 × 225,716.86
  4. Step 4: Simplify right side
    394,301.76x = 133,496,031,741.90
  5. Step 5: Solve for x
    x = 133,496,031,741.90/394,301.76
  6. Step 6: Final answer
    x = 338,563.11

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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.