Home / 1,928,772.80-2,661,769.68-1,069,413.20

Finding the Fourth Proportional to 1,928,772.80, 2,661,769.68 and 1,069,413.20

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Solution

The fourth proportional to 1,928,772.80, 2,661,769.68 and 1,069,413.20 is: 1,475,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,772.80 : 2,661,769.68 = 1,069,413.20 : x
  2. Step 2: Convert to fraction form
    1,928,772.80/2,661,769.68 = 1,069,413.20/x
  3. Step 3: Cross multiply
    1,928,772.80x = 2,661,769.68 × 1,069,413.20
  4. Step 4: Simplify right side
    1,928,772.80x = 2,846,531,631,151.78
  5. Step 5: Solve for x
    x = 2,846,531,631,151.78/1,928,772.80
  6. Step 6: Final answer
    x = 1,475,825.27

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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.