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Finding the Fourth Proportional to 493,859.94, 681,516.75 and 276,067.54

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Solution

The fourth proportional to 493,859.94, 681,516.75 and 276,067.54 is: 380,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,859.94 : 681,516.75 = 276,067.54 : x
  2. Step 2: Convert to fraction form
    493,859.94/681,516.75 = 276,067.54/x
  3. Step 3: Cross multiply
    493,859.94x = 681,516.75 × 276,067.54
  4. Step 4: Simplify right side
    493,859.94x = 188,144,652,641.30
  5. Step 5: Solve for x
    x = 188,144,652,641.30/493,859.94
  6. Step 6: Final answer
    x = 380,967.63

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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.