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Finding the Fourth Proportional to 499,603.80, 689,469.63 and 273,249.30

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Solution

The fourth proportional to 499,603.80, 689,469.63 and 273,249.30 is: 377,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,603.80 : 689,469.63 = 273,249.30 : x
  2. Step 2: Convert to fraction form
    499,603.80/689,469.63 = 273,249.30/x
  3. Step 3: Cross multiply
    499,603.80x = 689,469.63 × 273,249.30
  4. Step 4: Simplify right side
    499,603.80x = 188,397,093,768.76
  5. Step 5: Solve for x
    x = 188,397,093,768.76/499,603.80
  6. Step 6: Final answer
    x = 377,093.00

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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.