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Finding the Fourth Proportional to 627,906.57, 940,776.57 and 343,801.60

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Solution

The fourth proportional to 627,906.57, 940,776.57 and 343,801.60 is: 515,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,906.57 : 940,776.57 = 343,801.60 : x
  2. Step 2: Convert to fraction form
    627,906.57/940,776.57 = 343,801.60/x
  3. Step 3: Cross multiply
    627,906.57x = 940,776.57 × 343,801.60
  4. Step 4: Simplify right side
    627,906.57x = 323,440,487,656.57
  5. Step 5: Solve for x
    x = 323,440,487,656.57/627,906.57
  6. Step 6: Final answer
    x = 515,109.26

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1.5x scale

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.