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Finding the Fourth Proportional to 627,836.22, 866,409.60 and 341,356.38

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Solution

The fourth proportional to 627,836.22, 866,409.60 and 341,356.38 is: 471,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,836.22 : 866,409.60 = 341,356.38 : x
  2. Step 2: Convert to fraction form
    627,836.22/866,409.60 = 341,356.38/x
  3. Step 3: Cross multiply
    627,836.22x = 866,409.60 × 341,356.38
  4. Step 4: Simplify right side
    627,836.22x = 295,754,444,653.25
  5. Step 5: Solve for x
    x = 295,754,444,653.25/627,836.22
  6. Step 6: Final answer
    x = 471,069.42

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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.