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Finding the Fourth Proportional to 3,973,807.95, 5,961,600.69 and 1,449,463.20

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Solution

The fourth proportional to 3,973,807.95, 5,961,600.69 and 1,449,463.20 is: 2,174,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973,807.95 : 5,961,600.69 = 1,449,463.20 : x
  2. Step 2: Convert to fraction form
    3,973,807.95/5,961,600.69 = 1,449,463.20/x
  3. Step 3: Cross multiply
    3,973,807.95x = 5,961,600.69 × 1,449,463.20
  4. Step 4: Simplify right side
    3,973,807.95x = 8,641,120,813,249.61
  5. Step 5: Solve for x
    x = 8,641,120,813,249.61/3,973,807.95
  6. Step 6: Final answer
    x = 2,174,518.98

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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.