Home / 859,604.20-1,289,406.30-219,906.70

Finding the Fourth Proportional to 859,604.20, 1,289,406.30 and 219,906.70

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Solution

The fourth proportional to 859,604.20, 1,289,406.30 and 219,906.70 is: 329,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,604.20 : 1,289,406.30 = 219,906.70 : x
  2. Step 2: Convert to fraction form
    859,604.20/1,289,406.30 = 219,906.70/x
  3. Step 3: Cross multiply
    859,604.20x = 1,289,406.30 × 219,906.70
  4. Step 4: Simplify right side
    859,604.20x = 283,549,084,392.21
  5. Step 5: Solve for x
    x = 283,549,084,392.21/859,604.20
  6. Step 6: Final answer
    x = 329,860.05

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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.