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Finding the Fourth Proportional to 6,373,649.88, 8,795,361.42 and 3,620,328.66

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Solution

The fourth proportional to 6,373,649.88, 8,795,361.42 and 3,620,328.66 is: 4,995,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373,649.88 : 8,795,361.42 = 3,620,328.66 : x
  2. Step 2: Convert to fraction form
    6,373,649.88/8,795,361.42 = 3,620,328.66/x
  3. Step 3: Cross multiply
    6,373,649.88x = 8,795,361.42 × 3,620,328.66
  4. Step 4: Simplify right side
    6,373,649.88x = 31,842,099,023,884.30
  5. Step 5: Solve for x
    x = 31,842,099,023,884.30/6,373,649.88
  6. Step 6: Final answer
    x = 4,995,897.11

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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.