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Finding the Fourth Proportional to 451,871.91, 677,576.21 and 238,754.43

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Solution

The fourth proportional to 451,871.91, 677,576.21 and 238,754.43 is: 358,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,871.91 : 677,576.21 = 238,754.43 : x
  2. Step 2: Convert to fraction form
    451,871.91/677,576.21 = 238,754.43/x
  3. Step 3: Cross multiply
    451,871.91x = 677,576.21 × 238,754.43
  4. Step 4: Simplify right side
    451,871.91x = 161,774,320,606.34
  5. Step 5: Solve for x
    x = 161,774,320,606.34/451,871.91
  6. Step 6: Final answer
    x = 358,009.24

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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.