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Finding the Fourth Proportional to 481,469.25, 664,427.15 and 266,609.31

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Solution

The fourth proportional to 481,469.25, 664,427.15 and 266,609.31 is: 367,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,469.25 : 664,427.15 = 266,609.31 : x
  2. Step 2: Convert to fraction form
    481,469.25/664,427.15 = 266,609.31/x
  3. Step 3: Cross multiply
    481,469.25x = 664,427.15 × 266,609.31
  4. Step 4: Simplify right side
    481,469.25x = 177,142,462,673.72
  5. Step 5: Solve for x
    x = 177,142,462,673.72/481,469.25
  6. Step 6: Final answer
    x = 367,920.62

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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.