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Finding the Fourth Proportional to 437.28, 655.74 and 177.23

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Solution

The fourth proportional to 437.28, 655.74 and 177.23 is: 265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.28 : 655.74 = 177.23 : x
  2. Step 2: Convert to fraction form
    437.28/655.74 = 177.23/x
  3. Step 3: Cross multiply
    437.28x = 655.74 × 177.23
  4. Step 4: Simplify right side
    437.28x = 116,216.80
  5. Step 5: Solve for x
    x = 116,216.80/437.28
  6. Step 6: Final answer
    x = 265.77

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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.