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Finding the Fourth Proportional to 3,799,743.64, 5,699,626.92 and 921,099.16

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Solution

The fourth proportional to 3,799,743.64, 5,699,626.92 and 921,099.16 is: 1,381,651.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799,743.64 : 5,699,626.92 = 921,099.16 : x
  2. Step 2: Convert to fraction form
    3,799,743.64/5,699,626.92 = 921,099.16/x
  3. Step 3: Cross multiply
    3,799,743.64x = 5,699,626.92 × 921,099.16
  4. Step 4: Simplify right side
    3,799,743.64x = 5,249,921,568,325.39
  5. Step 5: Solve for x
    x = 5,249,921,568,325.39/3,799,743.64
  6. Step 6: Final answer
    x = 1,381,651.52

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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.