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Finding the Third Proportional to 464 and 555

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Solution

The third proportional to 464 and 555 is: 663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    464 : 555 = 555 : x
  2. Step 2: Convert to fraction form
    464/555 = 555/x
  3. Step 3: Cross multiply
    464x = 555 × 555
  4. Step 4: Simplify right side
    464x = 308,025
  5. Step 5: Solve for x
    x = 308,025/464
  6. Step 6: Final answer
    x = 663.85

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.