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Finding the Fourth Proportional to 490,791.80, 677,333.60 and 273,041.50

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Solution

The fourth proportional to 490,791.80, 677,333.60 and 273,041.50 is: 376,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,791.80 : 677,333.60 = 273,041.50 : x
  2. Step 2: Convert to fraction form
    490,791.80/677,333.60 = 273,041.50/x
  3. Step 3: Cross multiply
    490,791.80x = 677,333.60 × 273,041.50
  4. Step 4: Simplify right side
    490,791.80x = 184,940,182,144.40
  5. Step 5: Solve for x
    x = 184,940,182,144.40/490,791.80
  6. Step 6: Final answer
    x = 376,820.03

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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.