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Finding the Fourth Proportional to 671,896.08, 927,183.83 and 381,469.57

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Solution

The fourth proportional to 671,896.08, 927,183.83 and 381,469.57 is: 526,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,896.08 : 927,183.83 = 381,469.57 : x
  2. Step 2: Convert to fraction form
    671,896.08/927,183.83 = 381,469.57/x
  3. Step 3: Cross multiply
    671,896.08x = 927,183.83 × 381,469.57
  4. Step 4: Simplify right side
    671,896.08x = 353,692,415,033.71
  5. Step 5: Solve for x
    x = 353,692,415,033.71/671,896.08
  6. Step 6: Final answer
    x = 526,409.40

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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.