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Finding the Fourth Proportional to 3,761,971.07, 5,639,011.81 and 1,840,229.57

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Solution

The fourth proportional to 3,761,971.07, 5,639,011.81 and 1,840,229.57 is: 2,758,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761,971.07 : 5,639,011.81 = 1,840,229.57 : x
  2. Step 2: Convert to fraction form
    3,761,971.07/5,639,011.81 = 1,840,229.57/x
  3. Step 3: Cross multiply
    3,761,971.07x = 5,639,011.81 × 1,840,229.57
  4. Step 4: Simplify right side
    3,761,971.07x = 10,377,076,287,838.18
  5. Step 5: Solve for x
    x = 10,377,076,287,838.18/3,761,971.07
  6. Step 6: Final answer
    x = 2,758,414.69

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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.