Home / 1,188,213.53-1,639,735.11-644,349.17

Finding the Fourth Proportional to 1,188,213.53, 1,639,735.11 and 644,349.17

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Solution

The fourth proportional to 1,188,213.53, 1,639,735.11 and 644,349.17 is: 889,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,213.53 : 1,639,735.11 = 644,349.17 : x
  2. Step 2: Convert to fraction form
    1,188,213.53/1,639,735.11 = 644,349.17/x
  3. Step 3: Cross multiply
    1,188,213.53x = 1,639,735.11 × 644,349.17
  4. Step 4: Simplify right side
    1,188,213.53x = 1,056,561,957,148.36
  5. Step 5: Solve for x
    x = 1,056,561,957,148.36/1,188,213.53
  6. Step 6: Final answer
    x = 889,202.10

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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.