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Finding the Fourth Proportional to 627,940.40, 941,778.84 and 207,117.68

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Solution

The fourth proportional to 627,940.40, 941,778.84 and 207,117.68 is: 310,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,940.40 : 941,778.84 = 207,117.68 : x
  2. Step 2: Convert to fraction form
    627,940.40/941,778.84 = 207,117.68/x
  3. Step 3: Cross multiply
    627,940.40x = 941,778.84 × 207,117.68
  4. Step 4: Simplify right side
    627,940.40x = 195,059,048,413.89
  5. Step 5: Solve for x
    x = 195,059,048,413.89/627,940.40
  6. Step 6: Final answer
    x = 310,633.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.