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Finding the Fourth Proportional to 2,255.92, 3,383.15 and 716.56

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Solution

The fourth proportional to 2,255.92, 3,383.15 and 716.56 is: 1,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.92 : 3,383.15 = 716.56 : x
  2. Step 2: Convert to fraction form
    2,255.92/3,383.15 = 716.56/x
  3. Step 3: Cross multiply
    2,255.92x = 3,383.15 × 716.56
  4. Step 4: Simplify right side
    2,255.92x = 2,424,213.05
  5. Step 5: Solve for x
    x = 2,424,213.05/2,255.92
  6. Step 6: Final answer
    x = 1,074.60

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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.