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Finding the Fourth Proportional to 3,969,659.40, 5,954,844.29 and 1,540,755.71

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Solution

The fourth proportional to 3,969,659.40, 5,954,844.29 and 1,540,755.71 is: 2,311,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,659.40 : 5,954,844.29 = 1,540,755.71 : x
  2. Step 2: Convert to fraction form
    3,969,659.40/5,954,844.29 = 1,540,755.71/x
  3. Step 3: Cross multiply
    3,969,659.40x = 5,954,844.29 × 1,540,755.71
  4. Step 4: Simplify right side
    3,969,659.40x = 9,174,960,316,056.07
  5. Step 5: Solve for x
    x = 9,174,960,316,056.07/3,969,659.40
  6. Step 6: Final answer
    x = 2,311,271.42

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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.