Home / 1,189,896.34-1,785,553.66-431,796.90

Finding the Fourth Proportional to 1,189,896.34, 1,785,553.66 and 431,796.90

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Solution

The fourth proportional to 1,189,896.34, 1,785,553.66 and 431,796.90 is: 647,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,896.34 : 1,785,553.66 = 431,796.90 : x
  2. Step 2: Convert to fraction form
    1,189,896.34/1,785,553.66 = 431,796.90/x
  3. Step 3: Cross multiply
    1,189,896.34x = 1,785,553.66 × 431,796.90
  4. Step 4: Simplify right side
    1,189,896.34x = 770,996,535,171.65
  5. Step 5: Solve for x
    x = 770,996,535,171.65/1,189,896.34
  6. Step 6: Final answer
    x = 647,952.69

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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.