Home / 3,940,685.28-5,911,277.13-1,665,785.70

Finding the Fourth Proportional to 3,940,685.28, 5,911,277.13 and 1,665,785.70

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Solution

The fourth proportional to 3,940,685.28, 5,911,277.13 and 1,665,785.70 is: 2,498,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,685.28 : 5,911,277.13 = 1,665,785.70 : x
  2. Step 2: Convert to fraction form
    3,940,685.28/5,911,277.13 = 1,665,785.70/x
  3. Step 3: Cross multiply
    3,940,685.28x = 5,911,277.13 × 1,665,785.70
  4. Step 4: Simplify right side
    3,940,685.28x = 9,846,920,911,891.04
  5. Step 5: Solve for x
    x = 9,846,920,911,891.04/3,940,685.28
  6. Step 6: Final answer
    x = 2,498,783.89

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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.