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Finding the Fourth Proportional to 627,823.44, 866,413.80 and 341,363.16

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Solution

The fourth proportional to 627,823.44, 866,413.80 and 341,363.16 is: 471,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,823.44 : 866,413.80 = 341,363.16 : x
  2. Step 2: Convert to fraction form
    627,823.44/866,413.80 = 341,363.16/x
  3. Step 3: Cross multiply
    627,823.44x = 866,413.80 × 341,363.16
  4. Step 4: Simplify right side
    627,823.44x = 295,761,752,635.61
  5. Step 5: Solve for x
    x = 295,761,752,635.61/627,823.44
  6. Step 6: Final answer
    x = 471,090.65

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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.