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Finding the Fourth Proportional to 541,888.20, 812,832.30 and 329,311.80

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Solution

The fourth proportional to 541,888.20, 812,832.30 and 329,311.80 is: 493,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,888.20 : 812,832.30 = 329,311.80 : x
  2. Step 2: Convert to fraction form
    541,888.20/812,832.30 = 329,311.80/x
  3. Step 3: Cross multiply
    541,888.20x = 812,832.30 × 329,311.80
  4. Step 4: Simplify right side
    541,888.20x = 267,675,267,811.14
  5. Step 5: Solve for x
    x = 267,675,267,811.14/541,888.20
  6. Step 6: Final answer
    x = 493,967.70

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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.