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Finding the Fourth Proportional to 481,930.85, 665,068.49 and 267,074.45

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Solution

The fourth proportional to 481,930.85, 665,068.49 and 267,074.45 is: 368,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,930.85 : 665,068.49 = 267,074.45 : x
  2. Step 2: Convert to fraction form
    481,930.85/665,068.49 = 267,074.45/x
  3. Step 3: Cross multiply
    481,930.85x = 665,068.49 × 267,074.45
  4. Step 4: Simplify right side
    481,930.85x = 177,622,799,843.71
  5. Step 5: Solve for x
    x = 177,622,799,843.71/481,930.85
  6. Step 6: Final answer
    x = 368,564.91

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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.