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Finding the Fourth Proportional to 2,199,039.40, 3,298,559.10 and 2,199,039.40

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Solution

The fourth proportional to 2,199,039.40, 3,298,559.10 and 2,199,039.40 is: 3,298,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199,039.40 : 3,298,559.10 = 2,199,039.40 : x
  2. Step 2: Convert to fraction form
    2,199,039.40/3,298,559.10 = 2,199,039.40/x
  3. Step 3: Cross multiply
    2,199,039.40x = 3,298,559.10 × 2,199,039.40
  4. Step 4: Simplify right side
    2,199,039.40x = 7,253,661,424,128.54
  5. Step 5: Solve for x
    x = 7,253,661,424,128.54/2,199,039.40
  6. Step 6: Final answer
    x = 3,298,559.10

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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.