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Finding the Fourth Proportional to 396,999.70, 595,672.35 and 200,007.70

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Solution

The fourth proportional to 396,999.70, 595,672.35 and 200,007.70 is: 300,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,999.70 : 595,672.35 = 200,007.70 : x
  2. Step 2: Convert to fraction form
    396,999.70/595,672.35 = 200,007.70/x
  3. Step 3: Cross multiply
    396,999.70x = 595,672.35 × 200,007.70
  4. Step 4: Simplify right side
    396,999.70x = 119,139,056,677.10
  5. Step 5: Solve for x
    x = 119,139,056,677.10/396,999.70
  6. Step 6: Final answer
    x = 300,098.61

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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.