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Finding the Fourth Proportional to 489,231.80, 733,920.60 and 173,662.28

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Solution

The fourth proportional to 489,231.80, 733,920.60 and 173,662.28 is: 260,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,231.80 : 733,920.60 = 173,662.28 : x
  2. Step 2: Convert to fraction form
    489,231.80/733,920.60 = 173,662.28/x
  3. Step 3: Cross multiply
    489,231.80x = 733,920.60 × 173,662.28
  4. Step 4: Simplify right side
    489,231.80x = 127,454,324,734.97
  5. Step 5: Solve for x
    x = 127,454,324,734.97/489,231.80
  6. Step 6: Final answer
    x = 260,519.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.