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Finding the Fourth Proportional to 1,940.38, 2,676.82 and 1,194.04

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Solution

The fourth proportional to 1,940.38, 2,676.82 and 1,194.04 is: 1,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.38 : 2,676.82 = 1,194.04 : x
  2. Step 2: Convert to fraction form
    1,940.38/2,676.82 = 1,194.04/x
  3. Step 3: Cross multiply
    1,940.38x = 2,676.82 × 1,194.04
  4. Step 4: Simplify right side
    1,940.38x = 3,196,230.15
  5. Step 5: Solve for x
    x = 3,196,230.15/1,940.38
  6. Step 6: Final answer
    x = 1,647.22

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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.