Home / 691,204.78-1,036,806.36-192,568.78

Finding the Fourth Proportional to 691,204.78, 1,036,806.36 and 192,568.78

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Solution

The fourth proportional to 691,204.78, 1,036,806.36 and 192,568.78 is: 288,852.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,204.78 : 1,036,806.36 = 192,568.78 : x
  2. Step 2: Convert to fraction form
    691,204.78/1,036,806.36 = 192,568.78/x
  3. Step 3: Cross multiply
    691,204.78x = 1,036,806.36 × 192,568.78
  4. Step 4: Simplify right side
    691,204.78x = 199,656,535,841.44
  5. Step 5: Solve for x
    x = 199,656,535,841.44/691,204.78
  6. Step 6: Final answer
    x = 288,852.94

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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.