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Finding the Fourth Proportional to 517,819.41, 776,756.79 and 162,861.11

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Solution

The fourth proportional to 517,819.41, 776,756.79 and 162,861.11 is: 244,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,819.41 : 776,756.79 = 162,861.11 : x
  2. Step 2: Convert to fraction form
    517,819.41/776,756.79 = 162,861.11/x
  3. Step 3: Cross multiply
    517,819.41x = 776,756.79 × 162,861.11
  4. Step 4: Simplify right side
    517,819.41x = 126,503,469,135.65
  5. Step 5: Solve for x
    x = 126,503,469,135.65/517,819.41
  6. Step 6: Final answer
    x = 244,300.36

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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.