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Finding the Third Proportional to 504.50 and 662.75

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Solution

The third proportional to 504.50 and 662.75 is: 870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.50 : 662.75 = 662.75 : x
  2. Step 2: Convert to fraction form
    504.50/662.75 = 662.75/x
  3. Step 3: Cross multiply
    504.50x = 662.75 × 662.75
  4. Step 4: Simplify right side
    504.50x = 439,237.56
  5. Step 5: Solve for x
    x = 439,237.56/504.50
  6. Step 6: Final answer
    x = 870.64

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.