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Finding the Fourth Proportional to 536,120.50, 739,854.76 and 291,105.12

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Solution

The fourth proportional to 536,120.50, 739,854.76 and 291,105.12 is: 401,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,120.50 : 739,854.76 = 291,105.12 : x
  2. Step 2: Convert to fraction form
    536,120.50/739,854.76 = 291,105.12/x
  3. Step 3: Cross multiply
    536,120.50x = 739,854.76 × 291,105.12
  4. Step 4: Simplify right side
    536,120.50x = 215,375,508,692.37
  5. Step 5: Solve for x
    x = 215,375,508,692.37/536,120.50
  6. Step 6: Final answer
    x = 401,729.66

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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.