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Finding the Third Proportional to 493.50 and 702.75

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Solution

The third proportional to 493.50 and 702.75 is: 1,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.50 : 702.75 = 702.75 : x
  2. Step 2: Convert to fraction form
    493.50/702.75 = 702.75/x
  3. Step 3: Cross multiply
    493.50x = 702.75 × 702.75
  4. Step 4: Simplify right side
    493.50x = 493,857.56
  5. Step 5: Solve for x
    x = 493,857.56/493.50
  6. Step 6: Final answer
    x = 1,000.72

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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.