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Finding the Fourth Proportional to 376,060.68, 518,999.22 and 214,884.50

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Solution

The fourth proportional to 376,060.68, 518,999.22 and 214,884.50 is: 296,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,060.68 : 518,999.22 = 214,884.50 : x
  2. Step 2: Convert to fraction form
    376,060.68/518,999.22 = 214,884.50/x
  3. Step 3: Cross multiply
    376,060.68x = 518,999.22 × 214,884.50
  4. Step 4: Simplify right side
    376,060.68x = 111,524,885,295.09
  5. Step 5: Solve for x
    x = 111,524,885,295.09/376,060.68
  6. Step 6: Final answer
    x = 296,560.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.