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Finding the Third Proportional to 494.50 and 873

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Solution

The third proportional to 494.50 and 873 is: 1,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.50 : 873 = 873 : x
  2. Step 2: Convert to fraction form
    494.50/873 = 873/x
  3. Step 3: Cross multiply
    494.50x = 873 × 873
  4. Step 4: Simplify right side
    494.50x = 762,129
  5. Step 5: Solve for x
    x = 762,129/494.50
  6. Step 6: Final answer
    x = 1,541.21

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.