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Finding the Third Proportional to 488.44 and 744.75

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Solution

The third proportional to 488.44 and 744.75 is: 1,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.44 : 744.75 = 744.75 : x
  2. Step 2: Convert to fraction form
    488.44/744.75 = 744.75/x
  3. Step 3: Cross multiply
    488.44x = 744.75 × 744.75
  4. Step 4: Simplify right side
    488.44x = 554,652.56
  5. Step 5: Solve for x
    x = 554,652.56/488.44
  6. Step 6: Final answer
    x = 1,135.57

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.