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Finding the Fourth Proportional to 325,791.54, 488,386.62 and 225,998.82

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Solution

The fourth proportional to 325,791.54, 488,386.62 and 225,998.82 is: 338,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,791.54 : 488,386.62 = 225,998.82 : x
  2. Step 2: Convert to fraction form
    325,791.54/488,386.62 = 225,998.82/x
  3. Step 3: Cross multiply
    325,791.54x = 488,386.62 × 225,998.82
  4. Step 4: Simplify right side
    325,791.54x = 110,374,799,823.79
  5. Step 5: Solve for x
    x = 110,374,799,823.79/325,791.54
  6. Step 6: Final answer
    x = 338,789.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.