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Finding the Fourth Proportional to 530,817.88, 796,481.76 and 331,087

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Solution

The fourth proportional to 530,817.88, 796,481.76 and 331,087 is: 496,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,817.88 : 796,481.76 = 331,087 : x
  2. Step 2: Convert to fraction form
    530,817.88/796,481.76 = 331,087/x
  3. Step 3: Cross multiply
    530,817.88x = 796,481.76 × 331,087
  4. Step 4: Simplify right side
    530,817.88x = 263,704,756,473.12
  5. Step 5: Solve for x
    x = 263,704,756,473.12/530,817.88
  6. Step 6: Final answer
    x = 496,789.51

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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.