Home / 1,188,062.88-1,639,525.02-644,197.68

Finding the Fourth Proportional to 1,188,062.88, 1,639,525.02 and 644,197.68

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Solution

The fourth proportional to 1,188,062.88, 1,639,525.02 and 644,197.68 is: 888,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,062.88 : 1,639,525.02 = 644,197.68 : x
  2. Step 2: Convert to fraction form
    1,188,062.88/1,639,525.02 = 644,197.68/x
  3. Step 3: Cross multiply
    1,188,062.88x = 1,639,525.02 × 644,197.68
  4. Step 4: Simplify right side
    1,188,062.88x = 1,056,178,214,185.95
  5. Step 5: Solve for x
    x = 1,056,178,214,185.95/1,188,062.88
  6. Step 6: Final answer
    x = 888,991.85

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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.