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Finding the Third Proportional to 459 and 1,197

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Solution

The third proportional to 459 and 1,197 is: 3,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    459 : 1,197 = 1,197 : x
  2. Step 2: Convert to fraction form
    459/1,197 = 1,197/x
  3. Step 3: Cross multiply
    459x = 1,197 × 1,197
  4. Step 4: Simplify right side
    459x = 1,432,809
  5. Step 5: Solve for x
    x = 1,432,809/459
  6. Step 6: Final answer
    x = 3,121.59

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.