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Finding the Third Proportional to 480.50 and 889

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Solution

The third proportional to 480.50 and 889 is: 1,644.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.50 : 889 = 889 : x
  2. Step 2: Convert to fraction form
    480.50/889 = 889/x
  3. Step 3: Cross multiply
    480.50x = 889 × 889
  4. Step 4: Simplify right side
    480.50x = 790,321
  5. Step 5: Solve for x
    x = 790,321/480.50
  6. Step 6: Final answer
    x = 1,644.79

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.