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Finding the Fourth Proportional to 274,433.70, 410,994.45 and 221,945.70

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Solution

The fourth proportional to 274,433.70, 410,994.45 and 221,945.70 is: 332,387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,433.70 : 410,994.45 = 221,945.70 : x
  2. Step 2: Convert to fraction form
    274,433.70/410,994.45 = 221,945.70/x
  3. Step 3: Cross multiply
    274,433.70x = 410,994.45 × 221,945.70
  4. Step 4: Simplify right side
    274,433.70x = 91,218,450,901.37
  5. Step 5: Solve for x
    x = 91,218,450,901.37/274,433.70
  6. Step 6: Final answer
    x = 332,387.94

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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.