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Finding the Fourth Proportional to 655,258.88, 982,887.60 and 206,019.02

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Solution

The fourth proportional to 655,258.88, 982,887.60 and 206,019.02 is: 309,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,258.88 : 982,887.60 = 206,019.02 : x
  2. Step 2: Convert to fraction form
    655,258.88/982,887.60 = 206,019.02/x
  3. Step 3: Cross multiply
    655,258.88x = 982,887.60 × 206,019.02
  4. Step 4: Simplify right side
    655,258.88x = 202,493,540,122.15
  5. Step 5: Solve for x
    x = 202,493,540,122.15/655,258.88
  6. Step 6: Final answer
    x = 309,028.30

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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.