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Finding the Fourth Proportional to 493,261.70, 739,892.55 and 404,615.30

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Solution

The fourth proportional to 493,261.70, 739,892.55 and 404,615.30 is: 606,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,261.70 : 739,892.55 = 404,615.30 : x
  2. Step 2: Convert to fraction form
    493,261.70/739,892.55 = 404,615.30/x
  3. Step 3: Cross multiply
    493,261.70x = 739,892.55 × 404,615.30
  4. Step 4: Simplify right side
    493,261.70x = 299,371,846,086.02
  5. Step 5: Solve for x
    x = 299,371,846,086.02/493,261.70
  6. Step 6: Final answer
    x = 606,922.95

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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.