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Finding the Fourth Proportional to 551,191.80, 826,787.70 and 196,606.20

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Solution

The fourth proportional to 551,191.80, 826,787.70 and 196,606.20 is: 294,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,191.80 : 826,787.70 = 196,606.20 : x
  2. Step 2: Convert to fraction form
    551,191.80/826,787.70 = 196,606.20/x
  3. Step 3: Cross multiply
    551,191.80x = 826,787.70 × 196,606.20
  4. Step 4: Simplify right side
    551,191.80x = 162,551,587,903.74
  5. Step 5: Solve for x
    x = 162,551,587,903.74/551,191.80
  6. Step 6: Final answer
    x = 294,909.30

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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.