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Finding the Third Proportional to 320,969.25 and 496,723.50

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Solution

The third proportional to 320,969.25 and 496,723.50 is: 768,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,969.25 : 496,723.50 = 496,723.50 : x
  2. Step 2: Convert to fraction form
    320,969.25/496,723.50 = 496,723.50/x
  3. Step 3: Cross multiply
    320,969.25x = 496,723.50 × 496,723.50
  4. Step 4: Simplify right side
    320,969.25x = 246,734,235,452.25
  5. Step 5: Solve for x
    x = 246,734,235,452.25/320,969.25
  6. Step 6: Final answer
    x = 768,716.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.