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Finding the Fourth Proportional to 519,282.20, 778,923.30 and 294,555.80

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Solution

The fourth proportional to 519,282.20, 778,923.30 and 294,555.80 is: 441,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,282.20 : 778,923.30 = 294,555.80 : x
  2. Step 2: Convert to fraction form
    519,282.20/778,923.30 = 294,555.80/x
  3. Step 3: Cross multiply
    519,282.20x = 778,923.30 × 294,555.80
  4. Step 4: Simplify right side
    519,282.20x = 229,436,375,770.14
  5. Step 5: Solve for x
    x = 229,436,375,770.14/519,282.20
  6. Step 6: Final answer
    x = 441,833.70

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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.