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Finding the Fourth Proportional to 481,141.64, 721,709.22 and 376,049

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Solution

The fourth proportional to 481,141.64, 721,709.22 and 376,049 is: 564,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,141.64 : 721,709.22 = 376,049 : x
  2. Step 2: Convert to fraction form
    481,141.64/721,709.22 = 376,049/x
  3. Step 3: Cross multiply
    481,141.64x = 721,709.22 × 376,049
  4. Step 4: Simplify right side
    481,141.64x = 271,398,030,471.78
  5. Step 5: Solve for x
    x = 271,398,030,471.78/481,141.64
  6. Step 6: Final answer
    x = 564,070.97

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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.