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Finding the Third Proportional to 463.50 and 681.75

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Solution

The third proportional to 463.50 and 681.75 is: 1,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.50 : 681.75 = 681.75 : x
  2. Step 2: Convert to fraction form
    463.50/681.75 = 681.75/x
  3. Step 3: Cross multiply
    463.50x = 681.75 × 681.75
  4. Step 4: Simplify right side
    463.50x = 464,783.06
  5. Step 5: Solve for x
    x = 464,783.06/463.50
  6. Step 6: Final answer
    x = 1,002.77

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.