Home / 814,143.96-1,123,338.78-469,906.56

Finding the Fourth Proportional to 814,143.96, 1,123,338.78 and 469,906.56

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Solution

The fourth proportional to 814,143.96, 1,123,338.78 and 469,906.56 is: 648,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,143.96 : 1,123,338.78 = 469,906.56 : x
  2. Step 2: Convert to fraction form
    814,143.96/1,123,338.78 = 469,906.56/x
  3. Step 3: Cross multiply
    814,143.96x = 1,123,338.78 × 469,906.56
  4. Step 4: Simplify right side
    814,143.96x = 527,864,261,824.40
  5. Step 5: Solve for x
    x = 527,864,261,824.40/814,143.96
  6. Step 6: Final answer
    x = 648,367.23

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Double scale
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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.