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Finding the Fourth Proportional to 627,655.92, 866,168.24 and 341,176

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Solution

The fourth proportional to 627,655.92, 866,168.24 and 341,176 is: 470,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,655.92 : 866,168.24 = 341,176 : x
  2. Step 2: Convert to fraction form
    627,655.92/866,168.24 = 341,176/x
  3. Step 3: Cross multiply
    627,655.92x = 866,168.24 × 341,176
  4. Step 4: Simplify right side
    627,655.92x = 295,515,815,450.24
  5. Step 5: Solve for x
    x = 295,515,815,450.24/627,655.92
  6. Step 6: Final answer
    x = 470,824.55

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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.