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Finding the Third Proportional to 629,686 and 1,358,878

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Solution

The third proportional to 629,686 and 1,358,878 is: 2,932,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,686 : 1,358,878 = 1,358,878 : x
  2. Step 2: Convert to fraction form
    629,686/1,358,878 = 1,358,878/x
  3. Step 3: Cross multiply
    629,686x = 1,358,878 × 1,358,878
  4. Step 4: Simplify right side
    629,686x = 1,846,549,418,884
  5. Step 5: Solve for x
    x = 1,846,549,418,884/629,686
  6. Step 6: Final answer
    x = 2,932,492.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.