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Finding the Fourth Proportional to 327,712.67, 491,068.26 and 220,700.93

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Solution

The fourth proportional to 327,712.67, 491,068.26 and 220,700.93 is: 330,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,712.67 : 491,068.26 = 220,700.93 : x
  2. Step 2: Convert to fraction form
    327,712.67/491,068.26 = 220,700.93/x
  3. Step 3: Cross multiply
    327,712.67x = 491,068.26 × 220,700.93
  4. Step 4: Simplify right side
    327,712.67x = 108,379,221,675.48
  5. Step 5: Solve for x
    x = 108,379,221,675.48/327,712.67
  6. Step 6: Final answer
    x = 330,714.16

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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.