Home / 859,179.65-1,288,441.43-259,941.65

Finding the Fourth Proportional to 859,179.65, 1,288,441.43 and 259,941.65

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Solution

The fourth proportional to 859,179.65, 1,288,441.43 and 259,941.65 is: 389,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,179.65 : 1,288,441.43 = 259,941.65 : x
  2. Step 2: Convert to fraction form
    859,179.65/1,288,441.43 = 259,941.65/x
  3. Step 3: Cross multiply
    859,179.65x = 1,288,441.43 × 259,941.65
  4. Step 4: Simplify right side
    859,179.65x = 334,919,589,942.85
  5. Step 5: Solve for x
    x = 334,919,589,942.85/859,179.65
  6. Step 6: Final answer
    x = 389,813.22

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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.