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Finding the Fourth Proportional to 322,446,518.70, 483,669,778.05 and 192,987,491.10

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Solution

The fourth proportional to 322,446,518.70, 483,669,778.05 and 192,987,491.10 is: 289,481,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,446,518.70 : 483,669,778.05 = 192,987,491.10 : x
  2. Step 2: Convert to fraction form
    322,446,518.70/483,669,778.05 = 192,987,491.10/x
  3. Step 3: Cross multiply
    322,446,518.70x = 483,669,778.05 × 192,987,491.10
  4. Step 4: Simplify right side
    322,446,518.70x = 93,342,216,986,763,344
  5. Step 5: Solve for x
    x = 93,342,216,986,763,344/322,446,518.70
  6. Step 6: Final answer
    x = 289,481,236.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.