Home / 1,238,305.40-1,857,717.30-396,942.20

Finding the Fourth Proportional to 1,238,305.40, 1,857,717.30 and 396,942.20

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Solution

The fourth proportional to 1,238,305.40, 1,857,717.30 and 396,942.20 is: 595,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,305.40 : 1,857,717.30 = 396,942.20 : x
  2. Step 2: Convert to fraction form
    1,238,305.40/1,857,717.30 = 396,942.20/x
  3. Step 3: Cross multiply
    1,238,305.40x = 1,857,717.30 × 396,942.20
  4. Step 4: Simplify right side
    1,238,305.40x = 737,406,392,040.06
  5. Step 5: Solve for x
    x = 737,406,392,040.06/1,238,305.40
  6. Step 6: Final answer
    x = 595,496.39

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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.