Home / 1,187,930.52-1,639,356.30-644,067.36

Finding the Fourth Proportional to 1,187,930.52, 1,639,356.30 and 644,067.36

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Solution

The fourth proportional to 1,187,930.52, 1,639,356.30 and 644,067.36 is: 888,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,930.52 : 1,639,356.30 = 644,067.36 : x
  2. Step 2: Convert to fraction form
    1,187,930.52/1,639,356.30 = 644,067.36/x
  3. Step 3: Cross multiply
    1,187,930.52x = 1,639,356.30 × 644,067.36
  4. Step 4: Simplify right side
    1,187,930.52x = 1,055,855,884,240.37
  5. Step 5: Solve for x
    x = 1,055,855,884,240.37/1,187,930.52
  6. Step 6: Final answer
    x = 888,819.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.