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Finding the Fourth Proportional to 436,589,744.80, 655,203,481.80 and 307,449,581.80

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Solution

The fourth proportional to 436,589,744.80, 655,203,481.80 and 307,449,581.80 is: 461,398,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,589,744.80 : 655,203,481.80 = 307,449,581.80 : x
  2. Step 2: Convert to fraction form
    436,589,744.80/655,203,481.80 = 307,449,581.80/x
  3. Step 3: Cross multiply
    436,589,744.80x = 655,203,481.80 × 307,449,581.80
  4. Step 4: Simplify right side
    436,589,744.80x = 201,442,036,473,313,920
  5. Step 5: Solve for x
    x = 201,442,036,473,313,920/436,589,744.80
  6. Step 6: Final answer
    x = 461,398,919.40

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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.