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Finding the Fourth Proportional to 665,202.78, 997,694.82 and 191,761.02

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Solution

The fourth proportional to 665,202.78, 997,694.82 and 191,761.02 is: 287,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,202.78 : 997,694.82 = 191,761.02 : x
  2. Step 2: Convert to fraction form
    665,202.78/997,694.82 = 191,761.02/x
  3. Step 3: Cross multiply
    665,202.78x = 997,694.82 × 191,761.02
  4. Step 4: Simplify right side
    665,202.78x = 191,318,976,331.92
  5. Step 5: Solve for x
    x = 191,318,976,331.92/665,202.78
  6. Step 6: Final answer
    x = 287,610.01

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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.