Home / 766,757.70-1,150,136.37-205,792.20

Finding the Fourth Proportional to 766,757.70, 1,150,136.37 and 205,792.20

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Solution

The fourth proportional to 766,757.70, 1,150,136.37 and 205,792.20 is: 308,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,757.70 : 1,150,136.37 = 205,792.20 : x
  2. Step 2: Convert to fraction form
    766,757.70/1,150,136.37 = 205,792.20/x
  3. Step 3: Cross multiply
    766,757.70x = 1,150,136.37 × 205,792.20
  4. Step 4: Simplify right side
    766,757.70x = 236,689,093,882.31
  5. Step 5: Solve for x
    x = 236,689,093,882.31/766,757.70
  6. Step 6: Final answer
    x = 308,688.25

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Half scale
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Double scale
Find fourth proportional to 766,758.70, 1,150,137.87 and 205,793.20
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.