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Finding the Fourth Proportional to 322,716.36, 445,314.48 and 179,453.28

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Solution

The fourth proportional to 322,716.36, 445,314.48 and 179,453.28 is: 247,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,716.36 : 445,314.48 = 179,453.28 : x
  2. Step 2: Convert to fraction form
    322,716.36/445,314.48 = 179,453.28/x
  3. Step 3: Cross multiply
    322,716.36x = 445,314.48 × 179,453.28
  4. Step 4: Simplify right side
    322,716.36x = 79,913,144,067.49
  5. Step 5: Solve for x
    x = 79,913,144,067.49/322,716.36
  6. Step 6: Final answer
    x = 247,626.57

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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.