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Finding the Third Proportional to 120,624 and 263,604

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Solution

The third proportional to 120,624 and 263,604 is: 576,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,624 : 263,604 = 263,604 : x
  2. Step 2: Convert to fraction form
    120,624/263,604 = 263,604/x
  3. Step 3: Cross multiply
    120,624x = 263,604 × 263,604
  4. Step 4: Simplify right side
    120,624x = 69,487,068,816
  5. Step 5: Solve for x
    x = 69,487,068,816/120,624
  6. Step 6: Final answer
    x = 576,063.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.