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Finding the Fourth Proportional to 492,481.71, 679,583.97 and 277,674.57

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Solution

The fourth proportional to 492,481.71, 679,583.97 and 277,674.57 is: 383,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,481.71 : 679,583.97 = 277,674.57 : x
  2. Step 2: Convert to fraction form
    492,481.71/679,583.97 = 277,674.57/x
  3. Step 3: Cross multiply
    492,481.71x = 679,583.97 × 277,674.57
  4. Step 4: Simplify right side
    492,481.71x = 188,703,186,648.64
  5. Step 5: Solve for x
    x = 188,703,186,648.64/492,481.71
  6. Step 6: Final answer
    x = 383,167.91

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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.