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Finding the Fourth Proportional to 627,344.98, 865,739.28 and 340,865.80

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Solution

The fourth proportional to 627,344.98, 865,739.28 and 340,865.80 is: 470,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,344.98 : 865,739.28 = 340,865.80 : x
  2. Step 2: Convert to fraction form
    627,344.98/865,739.28 = 340,865.80/x
  3. Step 3: Cross multiply
    627,344.98x = 865,739.28 × 340,865.80
  4. Step 4: Simplify right side
    627,344.98x = 295,100,912,268.62
  5. Step 5: Solve for x
    x = 295,100,912,268.62/627,344.98
  6. Step 6: Final answer
    x = 470,396.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.