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Finding the Fourth Proportional to 551,125.80, 826,688.70 and 196,540.20

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Solution

The fourth proportional to 551,125.80, 826,688.70 and 196,540.20 is: 294,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,125.80 : 826,688.70 = 196,540.20 : x
  2. Step 2: Convert to fraction form
    551,125.80/826,688.70 = 196,540.20/x
  3. Step 3: Cross multiply
    551,125.80x = 826,688.70 × 196,540.20
  4. Step 4: Simplify right side
    551,125.80x = 162,477,562,435.74
  5. Step 5: Solve for x
    x = 162,477,562,435.74/551,125.80
  6. Step 6: Final answer
    x = 294,810.30

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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.