Home / 1,185,205.68-1,635,572.44-641,329.56

Finding the Fourth Proportional to 1,185,205.68, 1,635,572.44 and 641,329.56

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Solution

The fourth proportional to 1,185,205.68, 1,635,572.44 and 641,329.56 is: 885,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,205.68 : 1,635,572.44 = 641,329.56 : x
  2. Step 2: Convert to fraction form
    1,185,205.68/1,635,572.44 = 641,329.56/x
  3. Step 3: Cross multiply
    1,185,205.68x = 1,635,572.44 × 641,329.56
  4. Step 4: Simplify right side
    1,185,205.68x = 1,048,940,953,293.33
  5. Step 5: Solve for x
    x = 1,048,940,953,293.33/1,185,205.68
  6. Step 6: Final answer
    x = 885,028.62

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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.