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Finding the Fourth Proportional to 451,456.99, 622,607.11 and 298,651.30

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Solution

The fourth proportional to 451,456.99, 622,607.11 and 298,651.30 is: 411,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,456.99 : 622,607.11 = 298,651.30 : x
  2. Step 2: Convert to fraction form
    451,456.99/622,607.11 = 298,651.30/x
  3. Step 3: Cross multiply
    451,456.99x = 622,607.11 × 298,651.30
  4. Step 4: Simplify right side
    451,456.99x = 185,942,420,487.60
  5. Step 5: Solve for x
    x = 185,942,420,487.60/451,456.99
  6. Step 6: Final answer
    x = 411,871.84

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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.