Home / 1,187,900.52-1,639,297.54-644,034.62

Finding the Fourth Proportional to 1,187,900.52, 1,639,297.54 and 644,034.62

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Solution

The fourth proportional to 1,187,900.52, 1,639,297.54 and 644,034.62 is: 888,764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,900.52 : 1,639,297.54 = 644,034.62 : x
  2. Step 2: Convert to fraction form
    1,187,900.52/1,639,297.54 = 644,034.62/x
  3. Step 3: Cross multiply
    1,187,900.52x = 1,639,297.54 × 644,034.62
  4. Step 4: Simplify right side
    1,187,900.52x = 1,055,764,368,240.83
  5. Step 5: Solve for x
    x = 1,055,764,368,240.83/1,187,900.52
  6. Step 6: Final answer
    x = 888,764.97

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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.