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Finding the Fourth Proportional to 499,922.88, 689,786.88 and 296,037.84

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Solution

The fourth proportional to 499,922.88, 689,786.88 and 296,037.84 is: 408,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,922.88 : 689,786.88 = 296,037.84 : x
  2. Step 2: Convert to fraction form
    499,922.88/689,786.88 = 296,037.84/x
  3. Step 3: Cross multiply
    499,922.88x = 689,786.88 × 296,037.84
  4. Step 4: Simplify right side
    499,922.88x = 204,203,018,015.54
  5. Step 5: Solve for x
    x = 204,203,018,015.54/499,922.88
  6. Step 6: Final answer
    x = 408,469.04

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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.