Home / 831,273.94-1,147,158.21-449,299.54

Finding the Fourth Proportional to 831,273.94, 1,147,158.21 and 449,299.54

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Solution

The fourth proportional to 831,273.94, 1,147,158.21 and 449,299.54 is: 620,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,273.94 : 1,147,158.21 = 449,299.54 : x
  2. Step 2: Convert to fraction form
    831,273.94/1,147,158.21 = 449,299.54/x
  3. Step 3: Cross multiply
    831,273.94x = 1,147,158.21 × 449,299.54
  4. Step 4: Simplify right side
    831,273.94x = 515,417,656,060.22
  5. Step 5: Solve for x
    x = 515,417,656,060.22/831,273.94
  6. Step 6: Final answer
    x = 620,033.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.