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Finding the Fourth Proportional to 451,690.40, 677,098.20 and 404,451.20

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Solution

The fourth proportional to 451,690.40, 677,098.20 and 404,451.20 is: 606,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,690.40 : 677,098.20 = 404,451.20 : x
  2. Step 2: Convert to fraction form
    451,690.40/677,098.20 = 404,451.20/x
  3. Step 3: Cross multiply
    451,690.40x = 677,098.20 × 404,451.20
  4. Step 4: Simplify right side
    451,690.40x = 273,853,179,507.84
  5. Step 5: Solve for x
    x = 273,853,179,507.84/451,690.40
  6. Step 6: Final answer
    x = 606,285.14

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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.