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Finding the Third Proportional to 394 and 537

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Solution

The third proportional to 394 and 537 is: 731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394 : 537 = 537 : x
  2. Step 2: Convert to fraction form
    394/537 = 537/x
  3. Step 3: Cross multiply
    394x = 537 × 537
  4. Step 4: Simplify right side
    394x = 288,369
  5. Step 5: Solve for x
    x = 288,369/394
  6. Step 6: Final answer
    x = 731.90

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.