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Finding the Fourth Proportional to 493,589.70, 740,384.55 and 294,135.30

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Solution

The fourth proportional to 493,589.70, 740,384.55 and 294,135.30 is: 441,202.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,589.70 : 740,384.55 = 294,135.30 : x
  2. Step 2: Convert to fraction form
    493,589.70/740,384.55 = 294,135.30/x
  3. Step 3: Cross multiply
    493,589.70x = 740,384.55 × 294,135.30
  4. Step 4: Simplify right side
    493,589.70x = 217,773,231,729.62
  5. Step 5: Solve for x
    x = 217,773,231,729.62/493,589.70
  6. Step 6: Final answer
    x = 441,202.95

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Similar ratio
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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.