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Finding the Fourth Proportional to 868,754.43, 1,198,889.13 and 481,574.03

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Solution

The fourth proportional to 868,754.43, 1,198,889.13 and 481,574.03 is: 664,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,754.43 : 1,198,889.13 = 481,574.03 : x
  2. Step 2: Convert to fraction form
    868,754.43/1,198,889.13 = 481,574.03/x
  3. Step 3: Cross multiply
    868,754.43x = 1,198,889.13 × 481,574.03
  4. Step 4: Simplify right side
    868,754.43x = 577,353,865,668.75
  5. Step 5: Solve for x
    x = 577,353,865,668.75/868,754.43
  6. Step 6: Final answer
    x = 664,576.60

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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.