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Finding the Fourth Proportional to 324,990.63, 448,599.80 and 223,352.54

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Solution

The fourth proportional to 324,990.63, 448,599.80 and 223,352.54 is: 308,303.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,990.63 : 448,599.80 = 223,352.54 : x
  2. Step 2: Convert to fraction form
    324,990.63/448,599.80 = 223,352.54/x
  3. Step 3: Cross multiply
    324,990.63x = 448,599.80 × 223,352.54
  4. Step 4: Simplify right side
    324,990.63x = 100,195,906,453.37
  5. Step 5: Solve for x
    x = 100,195,906,453.37/324,990.63
  6. Step 6: Final answer
    x = 308,303.98

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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.