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Finding the Third Proportional to 921,195 and 1,999,740

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Solution

The third proportional to 921,195 and 1,999,740 is: 4,341,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,195 : 1,999,740 = 1,999,740 : x
  2. Step 2: Convert to fraction form
    921,195/1,999,740 = 1,999,740/x
  3. Step 3: Cross multiply
    921,195x = 1,999,740 × 1,999,740
  4. Step 4: Simplify right side
    921,195x = 3,998,960,067,600
  5. Step 5: Solve for x
    x = 3,998,960,067,600/921,195
  6. Step 6: Final answer
    x = 4,341,057.07

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.