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Finding the Fourth Proportional to 5,481,579.74, 7,562,841.01 and 3,189,297.56

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Solution

The fourth proportional to 5,481,579.74, 7,562,841.01 and 3,189,297.56 is: 4,400,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481,579.74 : 7,562,841.01 = 3,189,297.56 : x
  2. Step 2: Convert to fraction form
    5,481,579.74/7,562,841.01 = 3,189,297.56/x
  3. Step 3: Cross multiply
    5,481,579.74x = 7,562,841.01 × 3,189,297.56
  4. Step 4: Simplify right side
    5,481,579.74x = 24,120,150,334,073.49
  5. Step 5: Solve for x
    x = 24,120,150,334,073.49/5,481,579.74
  6. Step 6: Final answer
    x = 4,400,218.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.