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Finding the Fourth Proportional to 493,491.80, 739,071.30 and 334,861.40

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Solution

The fourth proportional to 493,491.80, 739,071.30 and 334,861.40 is: 501,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,491.80 : 739,071.30 = 334,861.40 : x
  2. Step 2: Convert to fraction form
    493,491.80/739,071.30 = 334,861.40/x
  3. Step 3: Cross multiply
    493,491.80x = 739,071.30 × 334,861.40
  4. Step 4: Simplify right side
    493,491.80x = 247,486,450,217.82
  5. Step 5: Solve for x
    x = 247,486,450,217.82/493,491.80
  6. Step 6: Final answer
    x = 501,500.63

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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.