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Finding the Fourth Proportional to 530,986.85, 796,002 and 193,790.90

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Solution

The fourth proportional to 530,986.85, 796,002 and 193,790.90 is: 290,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,986.85 : 796,002 = 193,790.90 : x
  2. Step 2: Convert to fraction form
    530,986.85/796,002 = 193,790.90/x
  3. Step 3: Cross multiply
    530,986.85x = 796,002 × 193,790.90
  4. Step 4: Simplify right side
    530,986.85x = 154,257,940,001.79
  5. Step 5: Solve for x
    x = 154,257,940,001.79/530,986.85
  6. Step 6: Final answer
    x = 290,511.79

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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.