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Finding the Fourth Proportional to 551,602.20, 827,208.90 and 196,627.80

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Solution

The fourth proportional to 551,602.20, 827,208.90 and 196,627.80 is: 294,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,602.20 : 827,208.90 = 196,627.80 : x
  2. Step 2: Convert to fraction form
    551,602.20/827,208.90 = 196,627.80/x
  3. Step 3: Cross multiply
    551,602.20x = 827,208.90 × 196,627.80
  4. Step 4: Simplify right side
    551,602.20x = 162,652,266,147.42
  5. Step 5: Solve for x
    x = 162,652,266,147.42/551,602.20
  6. Step 6: Final answer
    x = 294,872.40

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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.