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Finding the Fourth Proportional to 489,566.94, 733,759.92 and 252,780.45

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Solution

The fourth proportional to 489,566.94, 733,759.92 and 252,780.45 is: 378,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,566.94 : 733,759.92 = 252,780.45 : x
  2. Step 2: Convert to fraction form
    489,566.94/733,759.92 = 252,780.45/x
  3. Step 3: Cross multiply
    489,566.94x = 733,759.92 × 252,780.45
  4. Step 4: Simplify right side
    489,566.94x = 185,480,162,769.56
  5. Step 5: Solve for x
    x = 185,480,162,769.56/489,566.94
  6. Step 6: Final answer
    x = 378,865.78

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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.