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Finding the Fourth Proportional to 775.14, 1,162.71 and 227.48

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Solution

The fourth proportional to 775.14, 1,162.71 and 227.48 is: 341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.14 : 1,162.71 = 227.48 : x
  2. Step 2: Convert to fraction form
    775.14/1,162.71 = 227.48/x
  3. Step 3: Cross multiply
    775.14x = 1,162.71 × 227.48
  4. Step 4: Simplify right side
    775.14x = 264,487.46
  5. Step 5: Solve for x
    x = 264,487.46/775.14
  6. Step 6: Final answer
    x = 341.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.