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Finding the Fourth Proportional to 2,960.92, 4,441.21 and 880.94

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Solution

The fourth proportional to 2,960.92, 4,441.21 and 880.94 is: 1,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.92 : 4,441.21 = 880.94 : x
  2. Step 2: Convert to fraction form
    2,960.92/4,441.21 = 880.94/x
  3. Step 3: Cross multiply
    2,960.92x = 4,441.21 × 880.94
  4. Step 4: Simplify right side
    2,960.92x = 3,912,439.54
  5. Step 5: Solve for x
    x = 3,912,439.54/2,960.92
  6. Step 6: Final answer
    x = 1,321.36

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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.