Home / 831,840.03-1,147,939.29-449,866.71

Finding the Fourth Proportional to 831,840.03, 1,147,939.29 and 449,866.71

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Solution

The fourth proportional to 831,840.03, 1,147,939.29 and 449,866.71 is: 620,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,840.03 : 1,147,939.29 = 449,866.71 : x
  2. Step 2: Convert to fraction form
    831,840.03/1,147,939.29 = 449,866.71/x
  3. Step 3: Cross multiply
    831,840.03x = 1,147,939.29 × 449,866.71
  4. Step 4: Simplify right side
    831,840.03x = 516,419,671,672.04
  5. Step 5: Solve for x
    x = 516,419,671,672.04/831,840.03
  6. Step 6: Final answer
    x = 620,816.09

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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.