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Finding the Third Proportional to 352,620 and 775,215

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Solution

The third proportional to 352,620 and 775,215 is: 1,704,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,620 : 775,215 = 775,215 : x
  2. Step 2: Convert to fraction form
    352,620/775,215 = 775,215/x
  3. Step 3: Cross multiply
    352,620x = 775,215 × 775,215
  4. Step 4: Simplify right side
    352,620x = 600,958,296,225
  5. Step 5: Solve for x
    x = 600,958,296,225/352,620
  6. Step 6: Final answer
    x = 1,704,266.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.