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Finding the Third Proportional to 368.72 and 523.97

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Solution

The third proportional to 368.72 and 523.97 is: 744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.72 : 523.97 = 523.97 : x
  2. Step 2: Convert to fraction form
    368.72/523.97 = 523.97/x
  3. Step 3: Cross multiply
    368.72x = 523.97 × 523.97
  4. Step 4: Simplify right side
    368.72x = 274,543.25
  5. Step 5: Solve for x
    x = 274,543.25/368.72
  6. Step 6: Final answer
    x = 744.59

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.