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Finding the Third Proportional to 921,764 and 1,917,104

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Solution

The third proportional to 921,764 and 1,917,104 is: 3,987,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,764 : 1,917,104 = 1,917,104 : x
  2. Step 2: Convert to fraction form
    921,764/1,917,104 = 1,917,104/x
  3. Step 3: Cross multiply
    921,764x = 1,917,104 × 1,917,104
  4. Step 4: Simplify right side
    921,764x = 3,675,287,746,816
  5. Step 5: Solve for x
    x = 3,675,287,746,816/921,764
  6. Step 6: Final answer
    x = 3,987,232.90

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.