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Finding the Third Proportional to 320,968.50 and 496,722.75

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Solution

The third proportional to 320,968.50 and 496,722.75 is: 768,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,968.50 : 496,722.75 = 496,722.75 : x
  2. Step 2: Convert to fraction form
    320,968.50/496,722.75 = 496,722.75/x
  3. Step 3: Cross multiply
    320,968.50x = 496,722.75 × 496,722.75
  4. Step 4: Simplify right side
    320,968.50x = 246,733,490,367.56
  5. Step 5: Solve for x
    x = 246,733,490,367.56/320,968.50
  6. Step 6: Final answer
    x = 768,715.59

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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.