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Finding the Fourth Proportional to 627,998.13, 866,629.26 and 341,512.07

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Solution

The fourth proportional to 627,998.13, 866,629.26 and 341,512.07 is: 471,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,998.13 : 866,629.26 = 341,512.07 : x
  2. Step 2: Convert to fraction form
    627,998.13/866,629.26 = 341,512.07/x
  3. Step 3: Cross multiply
    627,998.13x = 866,629.26 × 341,512.07
  4. Step 4: Simplify right side
    627,998.13x = 295,964,348,172.02
  5. Step 5: Solve for x
    x = 295,964,348,172.02/627,998.13
  6. Step 6: Final answer
    x = 471,282.21

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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.