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Finding the Fourth Proportional to 481,481.80, 664,379.72 and 266,616.34

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Solution

The fourth proportional to 481,481.80, 664,379.72 and 266,616.34 is: 367,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,481.80 : 664,379.72 = 266,616.34 : x
  2. Step 2: Convert to fraction form
    481,481.80/664,379.72 = 266,616.34/x
  3. Step 3: Cross multiply
    481,481.80x = 664,379.72 × 266,616.34
  4. Step 4: Simplify right side
    481,481.80x = 177,134,486,322.59
  5. Step 5: Solve for x
    x = 177,134,486,322.59/481,481.80
  6. Step 6: Final answer
    x = 367,894.46

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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.