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Finding the Fourth Proportional to 418,624.85, 577,695.71 and 227,636.57

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Solution

The fourth proportional to 418,624.85, 577,695.71 and 227,636.57 is: 314,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,624.85 : 577,695.71 = 227,636.57 : x
  2. Step 2: Convert to fraction form
    418,624.85/577,695.71 = 227,636.57/x
  3. Step 3: Cross multiply
    418,624.85x = 577,695.71 × 227,636.57
  4. Step 4: Simplify right side
    418,624.85x = 131,504,668,789.93
  5. Step 5: Solve for x
    x = 131,504,668,789.93/418,624.85
  6. Step 6: Final answer
    x = 314,134.88

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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.