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Finding the Fourth Proportional to 986,589, 1,361,494.04 and 533,880

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Solution

The fourth proportional to 986,589, 1,361,494.04 and 533,880 is: 736,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,589 : 1,361,494.04 = 533,880 : x
  2. Step 2: Convert to fraction form
    986,589/1,361,494.04 = 533,880/x
  3. Step 3: Cross multiply
    986,589x = 1,361,494.04 × 533,880
  4. Step 4: Simplify right side
    986,589x = 726,874,435,405.80
  5. Step 5: Solve for x
    x = 726,874,435,405.80/986,589
  6. Step 6: Final answer
    x = 736,755.06

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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.