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Finding the Third Proportional to 494.50 and 703.50

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Solution

The third proportional to 494.50 and 703.50 is: 1,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.50 : 703.50 = 703.50 : x
  2. Step 2: Convert to fraction form
    494.50/703.50 = 703.50/x
  3. Step 3: Cross multiply
    494.50x = 703.50 × 703.50
  4. Step 4: Simplify right side
    494.50x = 494,912.25
  5. Step 5: Solve for x
    x = 494,912.25/494.50
  6. Step 6: Final answer
    x = 1,000.83

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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.