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Finding the Third Proportional to 694,356 and 1,521,660

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Solution

The third proportional to 694,356 and 1,521,660 is: 3,334,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,356 : 1,521,660 = 1,521,660 : x
  2. Step 2: Convert to fraction form
    694,356/1,521,660 = 1,521,660/x
  3. Step 3: Cross multiply
    694,356x = 1,521,660 × 1,521,660
  4. Step 4: Simplify right side
    694,356x = 2,315,449,155,600
  5. Step 5: Solve for x
    x = 2,315,449,155,600/694,356
  6. Step 6: Final answer
    x = 3,334,671.49

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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.