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Finding the Fourth Proportional to 3,883,692.32, 5,821,776.80 and 1,485,690.56

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Solution

The fourth proportional to 3,883,692.32, 5,821,776.80 and 1,485,690.56 is: 2,227,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883,692.32 : 5,821,776.80 = 1,485,690.56 : x
  2. Step 2: Convert to fraction form
    3,883,692.32/5,821,776.80 = 1,485,690.56/x
  3. Step 3: Cross multiply
    3,883,692.32x = 5,821,776.80 × 1,485,690.56
  4. Step 4: Simplify right side
    3,883,692.32x = 8,649,358,834,187.01
  5. Step 5: Solve for x
    x = 8,649,358,834,187.01/3,883,692.32
  6. Step 6: Final answer
    x = 2,227,096.82

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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.