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Finding the Fourth Proportional to 2,244.78, 3,367.74 and 705.78

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Solution

The fourth proportional to 2,244.78, 3,367.74 and 705.78 is: 1,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,244.78 : 3,367.74 = 705.78 : x
  2. Step 2: Convert to fraction form
    2,244.78/3,367.74 = 705.78/x
  3. Step 3: Cross multiply
    2,244.78x = 3,367.74 × 705.78
  4. Step 4: Simplify right side
    2,244.78x = 2,376,883.54
  5. Step 5: Solve for x
    x = 2,376,883.54/2,244.78
  6. Step 6: Final answer
    x = 1,058.85

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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.