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Finding the Third Proportional to 264 and 684

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Solution

The third proportional to 264 and 684 is: 1,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    264 : 684 = 684 : x
  2. Step 2: Convert to fraction form
    264/684 = 684/x
  3. Step 3: Cross multiply
    264x = 684 × 684
  4. Step 4: Simplify right side
    264x = 467,856
  5. Step 5: Solve for x
    x = 467,856/264
  6. Step 6: Final answer
    x = 1,772.18

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These problems maintain the same ratio (2.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.