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Finding the Fourth Proportional to 1,950,936.89, 2,927,338.46 and 689,358.65

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Solution

The fourth proportional to 1,950,936.89, 2,927,338.46 and 689,358.65 is: 1,034,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950,936.89 : 2,927,338.46 = 689,358.65 : x
  2. Step 2: Convert to fraction form
    1,950,936.89/2,927,338.46 = 689,358.65/x
  3. Step 3: Cross multiply
    1,950,936.89x = 2,927,338.46 × 689,358.65
  4. Step 4: Simplify right side
    1,950,936.89x = 2,017,986,085,431.89
  5. Step 5: Solve for x
    x = 2,017,986,085,431.89/1,950,936.89
  6. Step 6: Final answer
    x = 1,034,367.69

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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.