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Finding the Fourth Proportional to 441,872.40, 662,128.20 and 329,023.20

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Solution

The fourth proportional to 441,872.40, 662,128.20 and 329,023.20 is: 493,028.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,872.40 : 662,128.20 = 329,023.20 : x
  2. Step 2: Convert to fraction form
    441,872.40/662,128.20 = 329,023.20/x
  3. Step 3: Cross multiply
    441,872.40x = 662,128.20 × 329,023.20
  4. Step 4: Simplify right side
    441,872.40x = 217,855,539,174.24
  5. Step 5: Solve for x
    x = 217,855,539,174.24/441,872.40
  6. Step 6: Final answer
    x = 493,028.17

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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.