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Finding the Fourth Proportional to 960.92, 1,439.24 and 835.92

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Solution

The fourth proportional to 960.92, 1,439.24 and 835.92 is: 1,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.92 : 1,439.24 = 835.92 : x
  2. Step 2: Convert to fraction form
    960.92/1,439.24 = 835.92/x
  3. Step 3: Cross multiply
    960.92x = 1,439.24 × 835.92
  4. Step 4: Simplify right side
    960.92x = 1,203,089.50
  5. Step 5: Solve for x
    x = 1,203,089.50/960.92
  6. Step 6: Final answer
    x = 1,252.02

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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.