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Finding the Fourth Proportional to 493,797.27, 681,438.09 and 276,005.64

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Solution

The fourth proportional to 493,797.27, 681,438.09 and 276,005.64 is: 380,886.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,797.27 : 681,438.09 = 276,005.64 : x
  2. Step 2: Convert to fraction form
    493,797.27/681,438.09 = 276,005.64/x
  3. Step 3: Cross multiply
    493,797.27x = 681,438.09 × 276,005.64
  4. Step 4: Simplify right side
    493,797.27x = 188,080,756,150.83
  5. Step 5: Solve for x
    x = 188,080,756,150.83/493,797.27
  6. Step 6: Final answer
    x = 380,886.59

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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.