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Finding the Third Proportional to 261.84 and 574.17

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Solution

The third proportional to 261.84 and 574.17 is: 1,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.84 : 574.17 = 574.17 : x
  2. Step 2: Convert to fraction form
    261.84/574.17 = 574.17/x
  3. Step 3: Cross multiply
    261.84x = 574.17 × 574.17
  4. Step 4: Simplify right side
    261.84x = 329,673.34
  5. Step 5: Solve for x
    x = 329,673.34/261.84
  6. Step 6: Final answer
    x = 1,259.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.