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Finding the Third Proportional to 505,302 and 763,217.50

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Solution

The third proportional to 505,302 and 763,217.50 is: 1,152,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,302 : 763,217.50 = 763,217.50 : x
  2. Step 2: Convert to fraction form
    505,302/763,217.50 = 763,217.50/x
  3. Step 3: Cross multiply
    505,302x = 763,217.50 × 763,217.50
  4. Step 4: Simplify right side
    505,302x = 582,500,952,306.25
  5. Step 5: Solve for x
    x = 582,500,952,306.25/505,302
  6. Step 6: Final answer
    x = 1,152,777.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.