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Finding the Fourth Proportional to 352,690.43, 486,790.29 and 231,842.88

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Solution

The fourth proportional to 352,690.43, 486,790.29 and 231,842.88 is: 319,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,690.43 : 486,790.29 = 231,842.88 : x
  2. Step 2: Convert to fraction form
    352,690.43/486,790.29 = 231,842.88/x
  3. Step 3: Cross multiply
    352,690.43x = 486,790.29 × 231,842.88
  4. Step 4: Simplify right side
    352,690.43x = 112,858,862,789.64
  5. Step 5: Solve for x
    x = 112,858,862,789.64/352,690.43
  6. Step 6: Final answer
    x = 319,994.12

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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.