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Finding the Fourth Proportional to 481,381.52, 664,351.07 and 266,521.60

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Solution

The fourth proportional to 481,381.52, 664,351.07 and 266,521.60 is: 367,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,381.52 : 664,351.07 = 266,521.60 : x
  2. Step 2: Convert to fraction form
    481,381.52/664,351.07 = 266,521.60/x
  3. Step 3: Cross multiply
    481,381.52x = 664,351.07 × 266,521.60
  4. Step 4: Simplify right side
    481,381.52x = 177,063,910,570.19
  5. Step 5: Solve for x
    x = 177,063,910,570.19/481,381.52
  6. Step 6: Final answer
    x = 367,824.49

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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.