Home / 691,207.78-1,036,810.86-192,571.78

Finding the Fourth Proportional to 691,207.78, 1,036,810.86 and 192,571.78

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Solution

The fourth proportional to 691,207.78, 1,036,810.86 and 192,571.78 is: 288,857.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,207.78 : 1,036,810.86 = 192,571.78 : x
  2. Step 2: Convert to fraction form
    691,207.78/1,036,810.86 = 192,571.78/x
  3. Step 3: Cross multiply
    691,207.78x = 1,036,810.86 × 192,571.78
  4. Step 4: Simplify right side
    691,207.78x = 199,660,512,833.53
  5. Step 5: Solve for x
    x = 199,660,512,833.53/691,207.78
  6. Step 6: Final answer
    x = 288,857.44

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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.