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Finding the Third Proportional to 498.75 and 514.13

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Solution

The third proportional to 498.75 and 514.13 is: 529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.75 : 514.13 = 514.13 : x
  2. Step 2: Convert to fraction form
    498.75/514.13 = 514.13/x
  3. Step 3: Cross multiply
    498.75x = 514.13 × 514.13
  4. Step 4: Simplify right side
    498.75x = 264,324.52
  5. Step 5: Solve for x
    x = 264,324.52/498.75
  6. Step 6: Final answer
    x = 529.97

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Why These Related Problems?

These problems maintain the same ratio (1.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.