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Finding the Fourth Proportional to 481,058.12, 663,930.62 and 277,069.82

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Solution

The fourth proportional to 481,058.12, 663,930.62 and 277,069.82 is: 382,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,058.12 : 663,930.62 = 277,069.82 : x
  2. Step 2: Convert to fraction form
    481,058.12/663,930.62 = 277,069.82/x
  3. Step 3: Cross multiply
    481,058.12x = 663,930.62 × 277,069.82
  4. Step 4: Simplify right side
    481,058.12x = 183,955,137,375.89
  5. Step 5: Solve for x
    x = 183,955,137,375.89/481,058.12
  6. Step 6: Final answer
    x = 382,396.91

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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.