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Finding the Fourth Proportional to 659,190.50, 988,880.51 and 203,817.26

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Solution

The fourth proportional to 659,190.50, 988,880.51 and 203,817.26 is: 305,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,190.50 : 988,880.51 = 203,817.26 : x
  2. Step 2: Convert to fraction form
    659,190.50/988,880.51 = 203,817.26/x
  3. Step 3: Cross multiply
    659,190.50x = 988,880.51 × 203,817.26
  4. Step 4: Simplify right side
    659,190.50x = 201,550,910,052.11
  5. Step 5: Solve for x
    x = 201,550,910,052.11/659,190.50
  6. Step 6: Final answer
    x = 305,755.18

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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.