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Finding the Fourth Proportional to 481,473.75, 664,425.60 and 266,609.21

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Solution

The fourth proportional to 481,473.75, 664,425.60 and 266,609.21 is: 367,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,473.75 : 664,425.60 = 266,609.21 : x
  2. Step 2: Convert to fraction form
    481,473.75/664,425.60 = 266,609.21/x
  3. Step 3: Cross multiply
    481,473.75x = 664,425.60 × 266,609.21
  4. Step 4: Simplify right side
    481,473.75x = 177,141,980,997.65
  5. Step 5: Solve for x
    x = 177,141,980,997.65/481,473.75
  6. Step 6: Final answer
    x = 367,916.18

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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.