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Finding the Third Proportional to 408,351,116 and 627,664,926

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Solution

The third proportional to 408,351,116 and 627,664,926 is: 964,765,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,351,116 : 627,664,926 = 627,664,926 : x
  2. Step 2: Convert to fraction form
    408,351,116/627,664,926 = 627,664,926/x
  3. Step 3: Cross multiply
    408,351,116x = 627,664,926 × 627,664,926
  4. Step 4: Simplify right side
    408,351,116x = 393,963,259,330,585,472
  5. Step 5: Solve for x
    x = 393,963,259,330,585,472/408,351,116
  6. Step 6: Final answer
    x = 964,765,967.07

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.