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Finding the Fourth Proportional to 481,469.40, 664,427.36 and 266,609.46

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Solution

The fourth proportional to 481,469.40, 664,427.36 and 266,609.46 is: 367,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,469.40 : 664,427.36 = 266,609.46 : x
  2. Step 2: Convert to fraction form
    481,469.40/664,427.36 = 266,609.46/x
  3. Step 3: Cross multiply
    481,469.40x = 664,427.36 × 266,609.46
  4. Step 4: Simplify right side
    481,469.40x = 177,142,619,658.83
  5. Step 5: Solve for x
    x = 177,142,619,658.83/481,469.40
  6. Step 6: Final answer
    x = 367,920.83

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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.