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Finding the Fourth Proportional to 1,961,790.94, 2,939,945.83 and 950,644.70

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Solution

The fourth proportional to 1,961,790.94, 2,939,945.83 and 950,644.70 is: 1,424,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,790.94 : 2,939,945.83 = 950,644.70 : x
  2. Step 2: Convert to fraction form
    1,961,790.94/2,939,945.83 = 950,644.70/x
  3. Step 3: Cross multiply
    1,961,790.94x = 2,939,945.83 × 950,644.70
  4. Step 4: Simplify right side
    1,961,790.94x = 2,794,843,932,062.25
  5. Step 5: Solve for x
    x = 2,794,843,932,062.25/1,961,790.94
  6. Step 6: Final answer
    x = 1,424,639.02

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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.