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Finding the Third Proportional to 408.50 and 894.50

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Solution

The third proportional to 408.50 and 894.50 is: 1,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.50 : 894.50 = 894.50 : x
  2. Step 2: Convert to fraction form
    408.50/894.50 = 894.50/x
  3. Step 3: Cross multiply
    408.50x = 894.50 × 894.50
  4. Step 4: Simplify right side
    408.50x = 800,130.25
  5. Step 5: Solve for x
    x = 800,130.25/408.50
  6. Step 6: Final answer
    x = 1,958.70

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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.