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Finding the Fourth Proportional to 1,751,589, 2,627,383.50 and 421,893

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Solution

The fourth proportional to 1,751,589, 2,627,383.50 and 421,893 is: 632,839.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751,589 : 2,627,383.50 = 421,893 : x
  2. Step 2: Convert to fraction form
    1,751,589/2,627,383.50 = 421,893/x
  3. Step 3: Cross multiply
    1,751,589x = 2,627,383.50 × 421,893
  4. Step 4: Simplify right side
    1,751,589x = 1,108,474,706,965.50
  5. Step 5: Solve for x
    x = 1,108,474,706,965.50/1,751,589
  6. Step 6: Final answer
    x = 632,839.50

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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.