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Finding the Fourth Proportional to 353,434.66, 488,034.13 and 327,791.68

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Solution

The fourth proportional to 353,434.66, 488,034.13 and 327,791.68 is: 452,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,434.66 : 488,034.13 = 327,791.68 : x
  2. Step 2: Convert to fraction form
    353,434.66/488,034.13 = 327,791.68/x
  3. Step 3: Cross multiply
    353,434.66x = 488,034.13 × 327,791.68
  4. Step 4: Simplify right side
    353,434.66x = 159,973,527,370.04
  5. Step 5: Solve for x
    x = 159,973,527,370.04/353,434.66
  6. Step 6: Final answer
    x = 452,625.47

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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.