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Finding the Fourth Proportional to 627,578.43, 866,065.01 and 341,098.58

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Solution

The fourth proportional to 627,578.43, 866,065.01 and 341,098.58 is: 470,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,578.43 : 866,065.01 = 341,098.58 : x
  2. Step 2: Convert to fraction form
    627,578.43/866,065.01 = 341,098.58/x
  3. Step 3: Cross multiply
    627,578.43x = 866,065.01 × 341,098.58
  4. Step 4: Simplify right side
    627,578.43x = 295,413,539,062.87
  5. Step 5: Solve for x
    x = 295,413,539,062.87/627,578.43
  6. Step 6: Final answer
    x = 470,719.71

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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.