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Finding the Fourth Proportional to 551,423.90, 827,135.85 and 235,912.70

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Solution

The fourth proportional to 551,423.90, 827,135.85 and 235,912.70 is: 353,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,423.90 : 827,135.85 = 235,912.70 : x
  2. Step 2: Convert to fraction form
    551,423.90/827,135.85 = 235,912.70/x
  3. Step 3: Cross multiply
    551,423.90x = 827,135.85 × 235,912.70
  4. Step 4: Simplify right side
    551,423.90x = 195,131,851,640.30
  5. Step 5: Solve for x
    x = 195,131,851,640.30/551,423.90
  6. Step 6: Final answer
    x = 353,869.05

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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.