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Finding the Fourth Proportional to 551,266.80, 826,900.20 and 196,681.20

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Solution

The fourth proportional to 551,266.80, 826,900.20 and 196,681.20 is: 295,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,266.80 : 826,900.20 = 196,681.20 : x
  2. Step 2: Convert to fraction form
    551,266.80/826,900.20 = 196,681.20/x
  3. Step 3: Cross multiply
    551,266.80x = 826,900.20 × 196,681.20
  4. Step 4: Simplify right side
    551,266.80x = 162,635,723,616.24
  5. Step 5: Solve for x
    x = 162,635,723,616.24/551,266.80
  6. Step 6: Final answer
    x = 295,021.80

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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.