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Finding the Fourth Proportional to 490,873.77, 677,389.83 and 273,081.36

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Solution

The fourth proportional to 490,873.77, 677,389.83 and 273,081.36 is: 376,843.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,873.77 : 677,389.83 = 273,081.36 : x
  2. Step 2: Convert to fraction form
    490,873.77/677,389.83 = 273,081.36/x
  3. Step 3: Cross multiply
    490,873.77x = 677,389.83 × 273,081.36
  4. Step 4: Simplify right side
    490,873.77x = 184,982,536,026.57
  5. Step 5: Solve for x
    x = 184,982,536,026.57/490,873.77
  6. Step 6: Final answer
    x = 376,843.39

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1.5x scale

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.