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Finding the Fourth Proportional to 627,756.94, 866,321.67 and 341,296.78

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Solution

The fourth proportional to 627,756.94, 866,321.67 and 341,296.78 is: 470,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,756.94 : 866,321.67 = 341,296.78 : x
  2. Step 2: Convert to fraction form
    627,756.94/866,321.67 = 341,296.78/x
  3. Step 3: Cross multiply
    627,756.94x = 866,321.67 × 341,296.78
  4. Step 4: Simplify right side
    627,756.94x = 295,672,796,415.22
  5. Step 5: Solve for x
    x = 295,672,796,415.22/627,756.94
  6. Step 6: Final answer
    x = 470,998.85

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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.