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Finding the Fourth Proportional to 807,692.80, 1,114,639.41 and 445,140.01

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Solution

The fourth proportional to 807,692.80, 1,114,639.41 and 445,140.01 is: 614,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,692.80 : 1,114,639.41 = 445,140.01 : x
  2. Step 2: Convert to fraction form
    807,692.80/1,114,639.41 = 445,140.01/x
  3. Step 3: Cross multiply
    807,692.80x = 1,114,639.41 × 445,140.01
  4. Step 4: Simplify right side
    807,692.80x = 496,170,591,150.65
  5. Step 5: Solve for x
    x = 496,170,591,150.65/807,692.80
  6. Step 6: Final answer
    x = 614,306.07

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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.