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Finding the Fourth Proportional to 324,880.40, 486,629.40 and 269,584.40

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Solution

The fourth proportional to 324,880.40, 486,629.40 and 269,584.40 is: 403,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,880.40 : 486,629.40 = 269,584.40 : x
  2. Step 2: Convert to fraction form
    324,880.40/486,629.40 = 269,584.40/x
  3. Step 3: Cross multiply
    324,880.40x = 486,629.40 × 269,584.40
  4. Step 4: Simplify right side
    324,880.40x = 131,187,694,821.36
  5. Step 5: Solve for x
    x = 131,187,694,821.36/324,880.40
  6. Step 6: Final answer
    x = 403,803.05

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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.