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Finding the Fourth Proportional to 401,474.91, 554,034.26 and 229,446.26

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Solution

The fourth proportional to 401,474.91, 554,034.26 and 229,446.26 is: 316,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,474.91 : 554,034.26 = 229,446.26 : x
  2. Step 2: Convert to fraction form
    401,474.91/554,034.26 = 229,446.26/x
  3. Step 3: Cross multiply
    401,474.91x = 554,034.26 × 229,446.26
  4. Step 4: Simplify right side
    401,474.91x = 127,121,088,513.87
  5. Step 5: Solve for x
    x = 127,121,088,513.87/401,474.91
  6. Step 6: Final answer
    x = 316,635.20

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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.