Home / 831,619.78-1,247,418.73-200,528.13

Finding the Fourth Proportional to 831,619.78, 1,247,418.73 and 200,528.13

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Solution

The fourth proportional to 831,619.78, 1,247,418.73 and 200,528.13 is: 300,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,619.78 : 1,247,418.73 = 200,528.13 : x
  2. Step 2: Convert to fraction form
    831,619.78/1,247,418.73 = 200,528.13/x
  3. Step 3: Cross multiply
    831,619.78x = 1,247,418.73 × 200,528.13
  4. Step 4: Simplify right side
    831,619.78x = 250,142,545,253.88
  5. Step 5: Solve for x
    x = 250,142,545,253.88/831,619.78
  6. Step 6: Final answer
    x = 300,789.56

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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.