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Finding the Fourth Proportional to 2,674.79, 4,013.78 and 1,193.90

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Solution

The fourth proportional to 2,674.79, 4,013.78 and 1,193.90 is: 1,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.79 : 4,013.78 = 1,193.90 : x
  2. Step 2: Convert to fraction form
    2,674.79/4,013.78 = 1,193.90/x
  3. Step 3: Cross multiply
    2,674.79x = 4,013.78 × 1,193.90
  4. Step 4: Simplify right side
    2,674.79x = 4,792,031.87
  5. Step 5: Solve for x
    x = 4,792,031.87/2,674.79
  6. Step 6: Final answer
    x = 1,791.55

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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.