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Finding the Fourth Proportional to 590,861.76, 886,515.99 and 231,289.57

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Solution

The fourth proportional to 590,861.76, 886,515.99 and 231,289.57 is: 347,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,861.76 : 886,515.99 = 231,289.57 : x
  2. Step 2: Convert to fraction form
    590,861.76/886,515.99 = 231,289.57/x
  3. Step 3: Cross multiply
    590,861.76x = 886,515.99 × 231,289.57
  4. Step 4: Simplify right side
    590,861.76x = 205,041,902,125.22
  5. Step 5: Solve for x
    x = 205,041,902,125.22/590,861.76
  6. Step 6: Final answer
    x = 347,021.78

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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.