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Finding the Fourth Proportional to 481,400.46, 664,353.40 and 266,540.54

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Solution

The fourth proportional to 481,400.46, 664,353.40 and 266,540.54 is: 367,837.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,400.46 : 664,353.40 = 266,540.54 : x
  2. Step 2: Convert to fraction form
    481,400.46/664,353.40 = 266,540.54/x
  3. Step 3: Cross multiply
    481,400.46x = 664,353.40 × 266,540.54
  4. Step 4: Simplify right side
    481,400.46x = 177,077,113,986.84
  5. Step 5: Solve for x
    x = 177,077,113,986.84/481,400.46
  6. Step 6: Final answer
    x = 367,837.44

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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.