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Finding the Fourth Proportional to 326,792.14, 490,608 and 251,959.82

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Solution

The fourth proportional to 326,792.14, 490,608 and 251,959.82 is: 378,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,792.14 : 490,608 = 251,959.82 : x
  2. Step 2: Convert to fraction form
    326,792.14/490,608 = 251,959.82/x
  3. Step 3: Cross multiply
    326,792.14x = 490,608 × 251,959.82
  4. Step 4: Simplify right side
    326,792.14x = 123,613,503,370.56
  5. Step 5: Solve for x
    x = 123,613,503,370.56/326,792.14
  6. Step 6: Final answer
    x = 378,263.39

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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.