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Finding the Fourth Proportional to 3,279.93, 4,916.94 and 1,198.47

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Solution

The fourth proportional to 3,279.93, 4,916.94 and 1,198.47 is: 1,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.93 : 4,916.94 = 1,198.47 : x
  2. Step 2: Convert to fraction form
    3,279.93/4,916.94 = 1,198.47/x
  3. Step 3: Cross multiply
    3,279.93x = 4,916.94 × 1,198.47
  4. Step 4: Simplify right side
    3,279.93x = 5,892,819.03
  5. Step 5: Solve for x
    x = 5,892,819.03/3,279.93
  6. Step 6: Final answer
    x = 1,796.63

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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.