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Finding the Fourth Proportional to 1,993,734.22, 2,990,601.06 and 1,100,853.22

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Solution

The fourth proportional to 1,993,734.22, 2,990,601.06 and 1,100,853.22 is: 1,651,279.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,734.22 : 2,990,601.06 = 1,100,853.22 : x
  2. Step 2: Convert to fraction form
    1,993,734.22/2,990,601.06 = 1,100,853.22/x
  3. Step 3: Cross multiply
    1,993,734.22x = 2,990,601.06 × 1,100,853.22
  4. Step 4: Simplify right side
    1,993,734.22x = 3,292,212,806,636.41
  5. Step 5: Solve for x
    x = 3,292,212,806,636.41/1,993,734.22
  6. Step 6: Final answer
    x = 1,651,279.68

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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.