Home / 455,824.20-683,736.30-219,628.20

Finding the Fourth Proportional to 455,824.20, 683,736.30 and 219,628.20

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Solution

The fourth proportional to 455,824.20, 683,736.30 and 219,628.20 is: 329,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,824.20 : 683,736.30 = 219,628.20 : x
  2. Step 2: Convert to fraction form
    455,824.20/683,736.30 = 219,628.20/x
  3. Step 3: Cross multiply
    455,824.20x = 683,736.30 × 219,628.20
  4. Step 4: Simplify right side
    455,824.20x = 150,167,772,843.66
  5. Step 5: Solve for x
    x = 150,167,772,843.66/455,824.20
  6. Step 6: Final answer
    x = 329,442.30

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Similar ratio
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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.