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Finding the Fourth Proportional to 449,228.10, 673,842.15 and 381,576.90

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Solution

The fourth proportional to 449,228.10, 673,842.15 and 381,576.90 is: 572,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,228.10 : 673,842.15 = 381,576.90 : x
  2. Step 2: Convert to fraction form
    449,228.10/673,842.15 = 381,576.90/x
  3. Step 3: Cross multiply
    449,228.10x = 673,842.15 × 381,576.90
  4. Step 4: Simplify right side
    449,228.10x = 257,122,598,686.34
  5. Step 5: Solve for x
    x = 257,122,598,686.34/449,228.10
  6. Step 6: Final answer
    x = 572,365.35

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Similar ratio
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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.