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Finding the Fourth Proportional to 5,794,231.80, 8,691,347.70 and 3,638,724.60

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Solution

The fourth proportional to 5,794,231.80, 8,691,347.70 and 3,638,724.60 is: 5,458,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,794,231.80 : 8,691,347.70 = 3,638,724.60 : x
  2. Step 2: Convert to fraction form
    5,794,231.80/8,691,347.70 = 3,638,724.60/x
  3. Step 3: Cross multiply
    5,794,231.80x = 8,691,347.70 × 3,638,724.60
  4. Step 4: Simplify right side
    5,794,231.80x = 31,625,420,683,143.42
  5. Step 5: Solve for x
    x = 31,625,420,683,143.42/5,794,231.80
  6. Step 6: Final answer
    x = 5,458,086.90

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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.