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Finding the Fourth Proportional to 874,413.39, 1,206,693 and 506,961.96

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Solution

The fourth proportional to 874,413.39, 1,206,693 and 506,961.96 is: 699,608.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,413.39 : 1,206,693 = 506,961.96 : x
  2. Step 2: Convert to fraction form
    874,413.39/1,206,693 = 506,961.96/x
  3. Step 3: Cross multiply
    874,413.39x = 1,206,693 × 506,961.96
  4. Step 4: Simplify right side
    874,413.39x = 611,747,448,398.28
  5. Step 5: Solve for x
    x = 611,747,448,398.28/874,413.39
  6. Step 6: Final answer
    x = 699,608.97

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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.