Home / 2,057,863.20-3,086,794.80-638,354.40

Finding the Fourth Proportional to 2,057,863.20, 3,086,794.80 and 638,354.40

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Solution

The fourth proportional to 2,057,863.20, 3,086,794.80 and 638,354.40 is: 957,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057,863.20 : 3,086,794.80 = 638,354.40 : x
  2. Step 2: Convert to fraction form
    2,057,863.20/3,086,794.80 = 638,354.40/x
  3. Step 3: Cross multiply
    2,057,863.20x = 3,086,794.80 × 638,354.40
  4. Step 4: Simplify right side
    2,057,863.20x = 1,970,469,042,477.12
  5. Step 5: Solve for x
    x = 1,970,469,042,477.12/2,057,863.20
  6. Step 6: Final answer
    x = 957,531.60

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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.