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Finding the Fourth Proportional to 3,915,692.87, 5,873,698.60 and 1,865,299.46

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Solution

The fourth proportional to 3,915,692.87, 5,873,698.60 and 1,865,299.46 is: 2,798,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915,692.87 : 5,873,698.60 = 1,865,299.46 : x
  2. Step 2: Convert to fraction form
    3,915,692.87/5,873,698.60 = 1,865,299.46/x
  3. Step 3: Cross multiply
    3,915,692.87x = 5,873,698.60 × 1,865,299.46
  4. Step 4: Simplify right side
    3,915,692.87x = 10,956,206,792,751.02
  5. Step 5: Solve for x
    x = 10,956,206,792,751.02/3,915,692.87
  6. Step 6: Final answer
    x = 2,798,025.07

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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.