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Finding the Fourth Proportional to 627,647.94, 866,149.20 and 341,160.66

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Solution

The fourth proportional to 627,647.94, 866,149.20 and 341,160.66 is: 470,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,647.94 : 866,149.20 = 341,160.66 : x
  2. Step 2: Convert to fraction form
    627,647.94/866,149.20 = 341,160.66/x
  3. Step 3: Cross multiply
    627,647.94x = 866,149.20 × 341,160.66
  4. Step 4: Simplify right side
    627,647.94x = 295,496,032,730.47
  5. Step 5: Solve for x
    x = 295,496,032,730.47/627,647.94
  6. Step 6: Final answer
    x = 470,799.02

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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.