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Finding the Fourth Proportional to 326,785.14, 490,597.49 and 251,952.81

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Solution

The fourth proportional to 326,785.14, 490,597.49 and 251,952.81 is: 378,252.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,785.14 : 490,597.49 = 251,952.81 : x
  2. Step 2: Convert to fraction form
    326,785.14/490,597.49 = 251,952.81/x
  3. Step 3: Cross multiply
    326,785.14x = 490,597.49 × 251,952.81
  4. Step 4: Simplify right side
    326,785.14x = 123,607,414,924.68
  5. Step 5: Solve for x
    x = 123,607,414,924.68/326,785.14
  6. Step 6: Final answer
    x = 378,252.86

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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.