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Finding the Fourth Proportional to 551,438.80, 827,158.20 and 196,853.20

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Solution

The fourth proportional to 551,438.80, 827,158.20 and 196,853.20 is: 295,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,438.80 : 827,158.20 = 196,853.20 : x
  2. Step 2: Convert to fraction form
    551,438.80/827,158.20 = 196,853.20/x
  3. Step 3: Cross multiply
    551,438.80x = 827,158.20 × 196,853.20
  4. Step 4: Simplify right side
    551,438.80x = 162,828,738,576.24
  5. Step 5: Solve for x
    x = 162,828,738,576.24/551,438.80
  6. Step 6: Final answer
    x = 295,279.80

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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.