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Finding the Fourth Proportional to 352,826.80, 529,240.20 and 329,207.20

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Solution

The fourth proportional to 352,826.80, 529,240.20 and 329,207.20 is: 493,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,826.80 : 529,240.20 = 329,207.20 : x
  2. Step 2: Convert to fraction form
    352,826.80/529,240.20 = 329,207.20/x
  3. Step 3: Cross multiply
    352,826.80x = 529,240.20 × 329,207.20
  4. Step 4: Simplify right side
    352,826.80x = 174,229,684,369.44
  5. Step 5: Solve for x
    x = 174,229,684,369.44/352,826.80
  6. Step 6: Final answer
    x = 493,810.80

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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.