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Finding the Fourth Proportional to 627,939.35, 866,546.40 and 341,456.93

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Solution

The fourth proportional to 627,939.35, 866,546.40 and 341,456.93 is: 471,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,939.35 : 866,546.40 = 341,456.93 : x
  2. Step 2: Convert to fraction form
    627,939.35/866,546.40 = 341,456.93/x
  3. Step 3: Cross multiply
    627,939.35x = 866,546.40 × 341,456.93
  4. Step 4: Simplify right side
    627,939.35x = 295,888,269,113.82
  5. Step 5: Solve for x
    x = 295,888,269,113.82/627,939.35
  6. Step 6: Final answer
    x = 471,205.18

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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.