Home / 831,601.40-1,247,402.10-200,515.22

Finding the Fourth Proportional to 831,601.40, 1,247,402.10 and 200,515.22

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Solution

The fourth proportional to 831,601.40, 1,247,402.10 and 200,515.22 is: 300,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,601.40 : 1,247,402.10 = 200,515.22 : x
  2. Step 2: Convert to fraction form
    831,601.40/1,247,402.10 = 200,515.22/x
  3. Step 3: Cross multiply
    831,601.40x = 1,247,402.10 × 200,515.22
  4. Step 4: Simplify right side
    831,601.40x = 250,123,100,272.95
  5. Step 5: Solve for x
    x = 250,123,100,272.95/831,601.40
  6. Step 6: Final answer
    x = 300,772.82

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Double scale
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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.