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Finding the Fourth Proportional to 418,624.73, 577,695.53 and 227,636.45

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Solution

The fourth proportional to 418,624.73, 577,695.53 and 227,636.45 is: 314,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,624.73 : 577,695.53 = 227,636.45 : x
  2. Step 2: Convert to fraction form
    418,624.73/577,695.53 = 227,636.45/x
  3. Step 3: Cross multiply
    418,624.73x = 577,695.53 × 227,636.45
  4. Step 4: Simplify right side
    418,624.73x = 131,504,557,310.68
  5. Step 5: Solve for x
    x = 131,504,557,310.68/418,624.73
  6. Step 6: Final answer
    x = 314,134.71

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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.