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Finding the Fourth Proportional to 605,902.68, 836,151.28 and 333,981

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Solution

The fourth proportional to 605,902.68, 836,151.28 and 333,981 is: 460,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,902.68 : 836,151.28 = 333,981 : x
  2. Step 2: Convert to fraction form
    605,902.68/836,151.28 = 333,981/x
  3. Step 3: Cross multiply
    605,902.68x = 836,151.28 × 333,981
  4. Step 4: Simplify right side
    605,902.68x = 279,258,640,645.68
  5. Step 5: Solve for x
    x = 279,258,640,645.68/605,902.68
  6. Step 6: Final answer
    x = 460,896.86

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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.