Home / 694,083.55-957,884.11-388,188.40

Finding the Fourth Proportional to 694,083.55, 957,884.11 and 388,188.40

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Solution

The fourth proportional to 694,083.55, 957,884.11 and 388,188.40 is: 535,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,083.55 : 957,884.11 = 388,188.40 : x
  2. Step 2: Convert to fraction form
    694,083.55/957,884.11 = 388,188.40/x
  3. Step 3: Cross multiply
    694,083.55x = 957,884.11 × 388,188.40
  4. Step 4: Simplify right side
    694,083.55x = 371,839,500,660.74
  5. Step 5: Solve for x
    x = 371,839,500,660.74/694,083.55
  6. Step 6: Final answer
    x = 535,727.29

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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.