Home / 691,324.80-1,036,987.20-192,688.80

Finding the Fourth Proportional to 691,324.80, 1,036,987.20 and 192,688.80

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Solution

The fourth proportional to 691,324.80, 1,036,987.20 and 192,688.80 is: 289,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,324.80 : 1,036,987.20 = 192,688.80 : x
  2. Step 2: Convert to fraction form
    691,324.80/1,036,987.20 = 192,688.80/x
  3. Step 3: Cross multiply
    691,324.80x = 1,036,987.20 × 192,688.80
  4. Step 4: Simplify right side
    691,324.80x = 199,815,819,183.36
  5. Step 5: Solve for x
    x = 199,815,819,183.36/691,324.80
  6. Step 6: Final answer
    x = 289,033.20

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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.