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Finding the Fourth Proportional to 331,214.70, 496,822.05 and 297,000.30

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Solution

The fourth proportional to 331,214.70, 496,822.05 and 297,000.30 is: 445,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,214.70 : 496,822.05 = 297,000.30 : x
  2. Step 2: Convert to fraction form
    331,214.70/496,822.05 = 297,000.30/x
  3. Step 3: Cross multiply
    331,214.70x = 496,822.05 × 297,000.30
  4. Step 4: Simplify right side
    331,214.70x = 147,556,297,896.62
  5. Step 5: Solve for x
    x = 147,556,297,896.62/331,214.70
  6. Step 6: Final answer
    x = 445,500.45

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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.