Home / 1,245,630.33-1,866,993.84-571,782.78

Finding the Fourth Proportional to 1,245,630.33, 1,866,993.84 and 571,782.78

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Solution

The fourth proportional to 1,245,630.33, 1,866,993.84 and 571,782.78 is: 857,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,630.33 : 1,866,993.84 = 571,782.78 : x
  2. Step 2: Convert to fraction form
    1,245,630.33/1,866,993.84 = 571,782.78/x
  3. Step 3: Cross multiply
    1,245,630.33x = 1,866,993.84 × 571,782.78
  4. Step 4: Simplify right side
    1,245,630.33x = 1,067,514,928,078.08
  5. Step 5: Solve for x
    x = 1,067,514,928,078.08/1,245,630.33
  6. Step 6: Final answer
    x = 857,007.82

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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.