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Finding the Fourth Proportional to 960.08, 1,441.56 and 926.48

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Solution

The fourth proportional to 960.08, 1,441.56 and 926.48 is: 1,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.08 : 1,441.56 = 926.48 : x
  2. Step 2: Convert to fraction form
    960.08/1,441.56 = 926.48/x
  3. Step 3: Cross multiply
    960.08x = 1,441.56 × 926.48
  4. Step 4: Simplify right side
    960.08x = 1,335,576.51
  5. Step 5: Solve for x
    x = 1,335,576.51/960.08
  6. Step 6: Final answer
    x = 1,391.11

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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.