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Finding the Fourth Proportional to 1,890,813.06, 2,836,936.17 and 1,133,198.22

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Solution

The fourth proportional to 1,890,813.06, 2,836,936.17 and 1,133,198.22 is: 1,700,226.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,813.06 : 2,836,936.17 = 1,133,198.22 : x
  2. Step 2: Convert to fraction form
    1,890,813.06/2,836,936.17 = 1,133,198.22/x
  3. Step 3: Cross multiply
    1,890,813.06x = 2,836,936.17 × 1,133,198.22
  4. Step 4: Simplify right side
    1,890,813.06x = 3,214,811,018,097.62
  5. Step 5: Solve for x
    x = 3,214,811,018,097.62/1,890,813.06
  6. Step 6: Final answer
    x = 1,700,226.79

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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.