Home / 693,179.40-1,039,760.84-219,868.86

Finding the Fourth Proportional to 693,179.40, 1,039,760.84 and 219,868.86

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Solution

The fourth proportional to 693,179.40, 1,039,760.84 and 219,868.86 is: 329,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,179.40 : 1,039,760.84 = 219,868.86 : x
  2. Step 2: Convert to fraction form
    693,179.40/1,039,760.84 = 219,868.86/x
  3. Step 3: Cross multiply
    693,179.40x = 1,039,760.84 × 219,868.86
  4. Step 4: Simplify right side
    693,179.40x = 228,611,030,563.44
  5. Step 5: Solve for x
    x = 228,611,030,563.44/693,179.40
  6. Step 6: Final answer
    x = 329,800.67

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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.