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Finding the Third Proportional to 411.50 and 446

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Solution

The third proportional to 411.50 and 446 is: 483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.50 : 446 = 446 : x
  2. Step 2: Convert to fraction form
    411.50/446 = 446/x
  3. Step 3: Cross multiply
    411.50x = 446 × 446
  4. Step 4: Simplify right side
    411.50x = 198,916
  5. Step 5: Solve for x
    x = 198,916/411.50
  6. Step 6: Final answer
    x = 483.39

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.