Home / 291,380.70-436,811.85-172,926.30

Finding the Fourth Proportional to 291,380.70, 436,811.85 and 172,926.30

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Solution

The fourth proportional to 291,380.70, 436,811.85 and 172,926.30 is: 259,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,380.70 : 436,811.85 = 172,926.30 : x
  2. Step 2: Convert to fraction form
    291,380.70/436,811.85 = 172,926.30/x
  3. Step 3: Cross multiply
    291,380.70x = 436,811.85 × 172,926.30
  4. Step 4: Simplify right side
    291,380.70x = 75,536,257,016.66
  5. Step 5: Solve for x
    x = 75,536,257,016.66/291,380.70
  6. Step 6: Final answer
    x = 259,235.62

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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.