Home / 698,110.80-963,336.12-392,170.56

Finding the Fourth Proportional to 698,110.80, 963,336.12 and 392,170.56

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Solution

The fourth proportional to 698,110.80, 963,336.12 and 392,170.56 is: 541,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,110.80 : 963,336.12 = 392,170.56 : x
  2. Step 2: Convert to fraction form
    698,110.80/963,336.12 = 392,170.56/x
  3. Step 3: Cross multiply
    698,110.80x = 963,336.12 × 392,170.56
  4. Step 4: Simplify right side
    698,110.80x = 377,792,065,648.63
  5. Step 5: Solve for x
    x = 377,792,065,648.63/698,110.80
  6. Step 6: Final answer
    x = 541,163.47

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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.