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Finding the Third Proportional to 464.75 and 665.75

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Solution

The third proportional to 464.75 and 665.75 is: 953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.75 : 665.75 = 665.75 : x
  2. Step 2: Convert to fraction form
    464.75/665.75 = 665.75/x
  3. Step 3: Cross multiply
    464.75x = 665.75 × 665.75
  4. Step 4: Simplify right side
    464.75x = 443,223.06
  5. Step 5: Solve for x
    x = 443,223.06/464.75
  6. Step 6: Final answer
    x = 953.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.