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Finding the Fourth Proportional to 892,176, 1,231,044.12 and 504,989.52

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Solution

The fourth proportional to 892,176, 1,231,044.12 and 504,989.52 is: 696,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,176 : 1,231,044.12 = 504,989.52 : x
  2. Step 2: Convert to fraction form
    892,176/1,231,044.12 = 504,989.52/x
  3. Step 3: Cross multiply
    892,176x = 1,231,044.12 × 504,989.52
  4. Step 4: Simplify right side
    892,176x = 621,664,379,257.62
  5. Step 5: Solve for x
    x = 621,664,379,257.62/892,176
  6. Step 6: Final answer
    x = 696,795.68

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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.