Home / 693,179.39-1,039,760.85-219,868.85

Finding the Fourth Proportional to 693,179.39, 1,039,760.85 and 219,868.85

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Solution

The fourth proportional to 693,179.39, 1,039,760.85 and 219,868.85 is: 329,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,179.39 : 1,039,760.85 = 219,868.85 : x
  2. Step 2: Convert to fraction form
    693,179.39/1,039,760.85 = 219,868.85/x
  3. Step 3: Cross multiply
    693,179.39x = 1,039,760.85 × 219,868.85
  4. Step 4: Simplify right side
    693,179.39x = 228,611,022,364.52
  5. Step 5: Solve for x
    x = 228,611,022,364.52/693,179.39
  6. Step 6: Final answer
    x = 329,800.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.