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Finding the Fourth Proportional to 418,171.60, 577,073.73 and 227,186.56

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Solution

The fourth proportional to 418,171.60, 577,073.73 and 227,186.56 is: 313,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,171.60 : 577,073.73 = 227,186.56 : x
  2. Step 2: Convert to fraction form
    418,171.60/577,073.73 = 227,186.56/x
  3. Step 3: Cross multiply
    418,171.60x = 577,073.73 × 227,186.56
  4. Step 4: Simplify right side
    418,171.60x = 131,103,395,585.07
  5. Step 5: Solve for x
    x = 131,103,395,585.07/418,171.60
  6. Step 6: Final answer
    x = 313,515.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.