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Finding the Third Proportional to 492 and 695

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Solution

The third proportional to 492 and 695 is: 981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492 : 695 = 695 : x
  2. Step 2: Convert to fraction form
    492/695 = 695/x
  3. Step 3: Cross multiply
    492x = 695 × 695
  4. Step 4: Simplify right side
    492x = 483,025
  5. Step 5: Solve for x
    x = 483,025/492
  6. Step 6: Final answer
    x = 981.76

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.