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Finding the Fourth Proportional to 499,603.94, 689,453.43 and 273,249.44

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Solution

The fourth proportional to 499,603.94, 689,453.43 and 273,249.44 is: 377,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,603.94 : 689,453.43 = 273,249.44 : x
  2. Step 2: Convert to fraction form
    499,603.94/689,453.43 = 273,249.44/x
  3. Step 3: Cross multiply
    499,603.94x = 689,453.43 × 273,249.44
  4. Step 4: Simplify right side
    499,603.94x = 188,392,763,653.58
  5. Step 5: Solve for x
    x = 188,392,763,653.58/499,603.94
  6. Step 6: Final answer
    x = 377,084.22

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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.