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Finding the Fourth Proportional to 481,897.12, 665,021.94 and 267,040.78

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Solution

The fourth proportional to 481,897.12, 665,021.94 and 267,040.78 is: 368,518.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,897.12 : 665,021.94 = 267,040.78 : x
  2. Step 2: Convert to fraction form
    481,897.12/665,021.94 = 267,040.78/x
  3. Step 3: Cross multiply
    481,897.12x = 665,021.94 × 267,040.78
  4. Step 4: Simplify right side
    481,897.12x = 177,587,972,914.40
  5. Step 5: Solve for x
    x = 177,587,972,914.40/481,897.12
  6. Step 6: Final answer
    x = 368,518.44

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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.