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Finding the Fourth Proportional to 627,617.34, 866,120.76 and 341,137.44

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Solution

The fourth proportional to 627,617.34, 866,120.76 and 341,137.44 is: 470,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,617.34 : 866,120.76 = 341,137.44 : x
  2. Step 2: Convert to fraction form
    627,617.34/866,120.76 = 341,137.44/x
  3. Step 3: Cross multiply
    627,617.34x = 866,120.76 × 341,137.44
  4. Step 4: Simplify right side
    627,617.34x = 295,466,218,797.25
  5. Step 5: Solve for x
    x = 295,466,218,797.25/627,617.34
  6. Step 6: Final answer
    x = 470,774.47

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1.5x scale

Why These Related Problems?

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