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Finding the Third Proportional to 497.50 and 746.50

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Solution

The third proportional to 497.50 and 746.50 is: 1,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.50 : 746.50 = 746.50 : x
  2. Step 2: Convert to fraction form
    497.50/746.50 = 746.50/x
  3. Step 3: Cross multiply
    497.50x = 746.50 × 746.50
  4. Step 4: Simplify right side
    497.50x = 557,262.25
  5. Step 5: Solve for x
    x = 557,262.25/497.50
  6. Step 6: Final answer
    x = 1,120.13

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Why These Related Problems?

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