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Finding the Fourth Proportional to 481,448.85, 664,391.31 and 266,584.29

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Solution

The fourth proportional to 481,448.85, 664,391.31 and 266,584.29 is: 367,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,448.85 : 664,391.31 = 266,584.29 : x
  2. Step 2: Convert to fraction form
    481,448.85/664,391.31 = 266,584.29/x
  3. Step 3: Cross multiply
    481,448.85x = 664,391.31 × 266,584.29
  4. Step 4: Simplify right side
    481,448.85x = 177,116,285,658.52
  5. Step 5: Solve for x
    x = 177,116,285,658.52/481,448.85
  6. Step 6: Final answer
    x = 367,881.83

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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.