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Finding the Fourth Proportional to 323,806.66, 446,976.28 and 243,467.48

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Solution

The fourth proportional to 323,806.66, 446,976.28 and 243,467.48 is: 336,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,806.66 : 446,976.28 = 243,467.48 : x
  2. Step 2: Convert to fraction form
    323,806.66/446,976.28 = 243,467.48/x
  3. Step 3: Cross multiply
    323,806.66x = 446,976.28 × 243,467.48
  4. Step 4: Simplify right side
    323,806.66x = 108,824,188,511.37
  5. Step 5: Solve for x
    x = 108,824,188,511.37/323,806.66
  6. Step 6: Final answer
    x = 336,077.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.