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Finding the Fourth Proportional to 481,215.64, 721,820.22 and 376,123

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Solution

The fourth proportional to 481,215.64, 721,820.22 and 376,123 is: 564,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,215.64 : 721,820.22 = 376,123 : x
  2. Step 2: Convert to fraction form
    481,215.64/721,820.22 = 376,123/x
  3. Step 3: Cross multiply
    481,215.64x = 721,820.22 × 376,123
  4. Step 4: Simplify right side
    481,215.64x = 271,493,186,607.06
  5. Step 5: Solve for x
    x = 271,493,186,607.06/481,215.64
  6. Step 6: Final answer
    x = 564,181.97

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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.