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Finding the Fourth Proportional to 543,408.27, 749,865.96 and 301,672.12

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Solution

The fourth proportional to 543,408.27, 749,865.96 and 301,672.12 is: 416,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,408.27 : 749,865.96 = 301,672.12 : x
  2. Step 2: Convert to fraction form
    543,408.27/749,865.96 = 301,672.12/x
  3. Step 3: Cross multiply
    543,408.27x = 749,865.96 × 301,672.12
  4. Step 4: Simplify right side
    543,408.27x = 226,213,653,869.04
  5. Step 5: Solve for x
    x = 226,213,653,869.04/543,408.27
  6. Step 6: Final answer
    x = 416,286.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.