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Finding the Fourth Proportional to 308,568.89, 462,501.99 and 193,217.30

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Solution

The fourth proportional to 308,568.89, 462,501.99 and 193,217.30 is: 289,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,568.89 : 462,501.99 = 193,217.30 : x
  2. Step 2: Convert to fraction form
    308,568.89/462,501.99 = 193,217.30/x
  3. Step 3: Cross multiply
    308,568.89x = 462,501.99 × 193,217.30
  4. Step 4: Simplify right side
    308,568.89x = 89,363,383,439.92
  5. Step 5: Solve for x
    x = 89,363,383,439.92/308,568.89
  6. Step 6: Final answer
    x = 289,605.94

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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.