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Finding the Fourth Proportional to 2,481.93, 3,722.28 and 838.44

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Solution

The fourth proportional to 2,481.93, 3,722.28 and 838.44 is: 1,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.93 : 3,722.28 = 838.44 : x
  2. Step 2: Convert to fraction form
    2,481.93/3,722.28 = 838.44/x
  3. Step 3: Cross multiply
    2,481.93x = 3,722.28 × 838.44
  4. Step 4: Simplify right side
    2,481.93x = 3,120,908.44
  5. Step 5: Solve for x
    x = 3,120,908.44/2,481.93
  6. Step 6: Final answer
    x = 1,257.45

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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.