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Finding the Fourth Proportional to 438,573.98, 605,198.30 and 247,606.22

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Solution

The fourth proportional to 438,573.98, 605,198.30 and 247,606.22 is: 341,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,573.98 : 605,198.30 = 247,606.22 : x
  2. Step 2: Convert to fraction form
    438,573.98/605,198.30 = 247,606.22/x
  3. Step 3: Cross multiply
    438,573.98x = 605,198.30 × 247,606.22
  4. Step 4: Simplify right side
    438,573.98x = 149,850,863,413.43
  5. Step 5: Solve for x
    x = 149,850,863,413.43/438,573.98
  6. Step 6: Final answer
    x = 341,677.51

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1.5x scale

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.