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Finding the Third Proportional to 410,380.50 and 613,923

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Solution

The third proportional to 410,380.50 and 613,923 is: 918,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,380.50 : 613,923 = 613,923 : x
  2. Step 2: Convert to fraction form
    410,380.50/613,923 = 613,923/x
  3. Step 3: Cross multiply
    410,380.50x = 613,923 × 613,923
  4. Step 4: Simplify right side
    410,380.50x = 376,901,449,929
  5. Step 5: Solve for x
    x = 376,901,449,929/410,380.50
  6. Step 6: Final answer
    x = 918,419.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.