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Finding the Fourth Proportional to 5,806,378.80, 8,707,494.60 and 2,019,985.20

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Solution

The fourth proportional to 5,806,378.80, 8,707,494.60 and 2,019,985.20 is: 3,029,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806,378.80 : 8,707,494.60 = 2,019,985.20 : x
  2. Step 2: Convert to fraction form
    5,806,378.80/8,707,494.60 = 2,019,985.20/x
  3. Step 3: Cross multiply
    5,806,378.80x = 8,707,494.60 × 2,019,985.20
  4. Step 4: Simplify right side
    5,806,378.80x = 17,589,010,221,079.92
  5. Step 5: Solve for x
    x = 17,589,010,221,079.92/5,806,378.80
  6. Step 6: Final answer
    x = 3,029,256.41

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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.