Home / 1,187,935.52-1,639,363.20-644,072.36

Finding the Fourth Proportional to 1,187,935.52, 1,639,363.20 and 644,072.36

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Solution

The fourth proportional to 1,187,935.52, 1,639,363.20 and 644,072.36 is: 888,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,935.52 : 1,639,363.20 = 644,072.36 : x
  2. Step 2: Convert to fraction form
    1,187,935.52/1,639,363.20 = 644,072.36/x
  3. Step 3: Cross multiply
    1,187,935.52x = 1,639,363.20 × 644,072.36
  4. Step 4: Simplify right side
    1,187,935.52x = 1,055,868,525,121.15
  5. Step 5: Solve for x
    x = 1,055,868,525,121.15/1,187,935.52
  6. Step 6: Final answer
    x = 888,826.46

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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.