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Finding the Fourth Proportional to 627,734.94, 866,291.19 and 341,274.66

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Solution

The fourth proportional to 627,734.94, 866,291.19 and 341,274.66 is: 470,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,734.94 : 866,291.19 = 341,274.66 : x
  2. Step 2: Convert to fraction form
    627,734.94/866,291.19 = 341,274.66/x
  3. Step 3: Cross multiply
    627,734.94x = 866,291.19 × 341,274.66
  4. Step 4: Simplify right side
    627,734.94x = 295,643,231,328.25
  5. Step 5: Solve for x
    x = 295,643,231,328.25/627,734.94
  6. Step 6: Final answer
    x = 470,968.26

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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.