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Finding the Fourth Proportional to 551,222.20, 826,638.90 and 196,247.80

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Solution

The fourth proportional to 551,222.20, 826,638.90 and 196,247.80 is: 294,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,222.20 : 826,638.90 = 196,247.80 : x
  2. Step 2: Convert to fraction form
    551,222.20/826,638.90 = 196,247.80/x
  3. Step 3: Cross multiply
    551,222.20x = 826,638.90 × 196,247.80
  4. Step 4: Simplify right side
    551,222.20x = 162,226,065,519.42
  5. Step 5: Solve for x
    x = 162,226,065,519.42/551,222.20
  6. Step 6: Final answer
    x = 294,302.49

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1.5x scale

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.