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Finding the Fourth Proportional to 413,575.90, 620,471.85 and 133,099.90

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Solution

The fourth proportional to 413,575.90, 620,471.85 and 133,099.90 is: 199,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,575.90 : 620,471.85 = 133,099.90 : x
  2. Step 2: Convert to fraction form
    413,575.90/620,471.85 = 133,099.90/x
  3. Step 3: Cross multiply
    413,575.90x = 620,471.85 × 133,099.90
  4. Step 4: Simplify right side
    413,575.90x = 82,584,741,187.82
  5. Step 5: Solve for x
    x = 82,584,741,187.82/413,575.90
  6. Step 6: Final answer
    x = 199,684.61

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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.