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Finding the Fourth Proportional to 519,087.70, 777,793.20 and 293,778.10

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Solution

The fourth proportional to 519,087.70, 777,793.20 and 293,778.10 is: 440,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,087.70 : 777,793.20 = 293,778.10 : x
  2. Step 2: Convert to fraction form
    519,087.70/777,793.20 = 293,778.10/x
  3. Step 3: Cross multiply
    519,087.70x = 777,793.20 × 293,778.10
  4. Step 4: Simplify right side
    519,087.70x = 228,498,608,488.92
  5. Step 5: Solve for x
    x = 228,498,608,488.92/519,087.70
  6. Step 6: Final answer
    x = 440,192.69

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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.