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Finding the Fourth Proportional to 498,960.40, 748,910.40 and 262,472.80

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Solution

The fourth proportional to 498,960.40, 748,910.40 and 262,472.80 is: 393,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,960.40 : 748,910.40 = 262,472.80 : x
  2. Step 2: Convert to fraction form
    498,960.40/748,910.40 = 262,472.80/x
  3. Step 3: Cross multiply
    498,960.40x = 748,910.40 × 262,472.80
  4. Step 4: Simplify right side
    498,960.40x = 196,568,609,637.12
  5. Step 5: Solve for x
    x = 196,568,609,637.12/498,960.40
  6. Step 6: Final answer
    x = 393,956.33

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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.