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Finding the Fourth Proportional to 411,418.20, 617,006.34 and 174,759

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Solution

The fourth proportional to 411,418.20, 617,006.34 and 174,759 is: 262,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,418.20 : 617,006.34 = 174,759 : x
  2. Step 2: Convert to fraction form
    411,418.20/617,006.34 = 174,759/x
  3. Step 3: Cross multiply
    411,418.20x = 617,006.34 × 174,759
  4. Step 4: Simplify right side
    411,418.20x = 107,827,410,972.06
  5. Step 5: Solve for x
    x = 107,827,410,972.06/411,418.20
  6. Step 6: Final answer
    x = 262,087.12

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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.