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Finding the Fourth Proportional to 617,434.88, 926,142.60 and 196,707.92

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Solution

The fourth proportional to 617,434.88, 926,142.60 and 196,707.92 is: 295,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,434.88 : 926,142.60 = 196,707.92 : x
  2. Step 2: Convert to fraction form
    617,434.88/926,142.60 = 196,707.92/x
  3. Step 3: Cross multiply
    617,434.88x = 926,142.60 × 196,707.92
  4. Step 4: Simplify right side
    617,434.88x = 182,179,584,469.39
  5. Step 5: Solve for x
    x = 182,179,584,469.39/617,434.88
  6. Step 6: Final answer
    x = 295,058.78

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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.