Home / 1,188,399.33-1,639,986.30-644,532.93

Finding the Fourth Proportional to 1,188,399.33, 1,639,986.30 and 644,532.93

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Solution

The fourth proportional to 1,188,399.33, 1,639,986.30 and 644,532.93 is: 889,452.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,399.33 : 1,639,986.30 = 644,532.93 : x
  2. Step 2: Convert to fraction form
    1,188,399.33/1,639,986.30 = 644,532.93/x
  3. Step 3: Cross multiply
    1,188,399.33x = 1,639,986.30 × 644,532.93
  4. Step 4: Simplify right side
    1,188,399.33x = 1,057,025,175,098.86
  5. Step 5: Solve for x
    x = 1,057,025,175,098.86/1,188,399.33
  6. Step 6: Final answer
    x = 889,452.85

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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.