Home / 418,727.43-628,153.38-194,110.56

Finding the Fourth Proportional to 418,727.43, 628,153.38 and 194,110.56

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Solution

The fourth proportional to 418,727.43, 628,153.38 and 194,110.56 is: 291,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,727.43 : 628,153.38 = 194,110.56 : x
  2. Step 2: Convert to fraction form
    418,727.43/628,153.38 = 194,110.56/x
  3. Step 3: Cross multiply
    418,727.43x = 628,153.38 × 194,110.56
  4. Step 4: Simplify right side
    418,727.43x = 121,931,204,357.69
  5. Step 5: Solve for x
    x = 121,931,204,357.69/418,727.43
  6. Step 6: Final answer
    x = 291,194.69

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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.