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Finding the Fourth Proportional to 960.54, 1,325.36 and 562.22

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Solution

The fourth proportional to 960.54, 1,325.36 and 562.22 is: 775.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.54 : 1,325.36 = 562.22 : x
  2. Step 2: Convert to fraction form
    960.54/1,325.36 = 562.22/x
  3. Step 3: Cross multiply
    960.54x = 1,325.36 × 562.22
  4. Step 4: Simplify right side
    960.54x = 745,143.90
  5. Step 5: Solve for x
    x = 745,143.90/960.54
  6. Step 6: Final answer
    x = 775.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.