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Finding the Fourth Proportional to 339,440.44, 468,375.78 and 196,172.86

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Solution

The fourth proportional to 339,440.44, 468,375.78 and 196,172.86 is: 270,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,440.44 : 468,375.78 = 196,172.86 : x
  2. Step 2: Convert to fraction form
    339,440.44/468,375.78 = 196,172.86/x
  3. Step 3: Cross multiply
    339,440.44x = 468,375.78 × 196,172.86
  4. Step 4: Simplify right side
    339,440.44x = 91,882,616,317.33
  5. Step 5: Solve for x
    x = 91,882,616,317.33/339,440.44
  6. Step 6: Final answer
    x = 270,688.48

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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.