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Finding the Fourth Proportional to 671.72, 927.26 and 450.60

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Solution

The fourth proportional to 671.72, 927.26 and 450.60 is: 622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.72 : 927.26 = 450.60 : x
  2. Step 2: Convert to fraction form
    671.72/927.26 = 450.60/x
  3. Step 3: Cross multiply
    671.72x = 927.26 × 450.60
  4. Step 4: Simplify right side
    671.72x = 417,823.36
  5. Step 5: Solve for x
    x = 417,823.36/671.72
  6. Step 6: Final answer
    x = 622.02

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