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Finding the Fourth Proportional to 519,092.40, 778,784.40 and 252,861.60

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Solution

The fourth proportional to 519,092.40, 778,784.40 and 252,861.60 is: 379,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,092.40 : 778,784.40 = 252,861.60 : x
  2. Step 2: Convert to fraction form
    519,092.40/778,784.40 = 252,861.60/x
  3. Step 3: Cross multiply
    519,092.40x = 778,784.40 × 252,861.60
  4. Step 4: Simplify right side
    519,092.40x = 196,924,669,439.04
  5. Step 5: Solve for x
    x = 196,924,669,439.04/519,092.40
  6. Step 6: Final answer
    x = 379,363.42

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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.