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Finding the Fourth Proportional to 409,490.80, 613,944.60 and 156,673.60

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Solution

The fourth proportional to 409,490.80, 613,944.60 and 156,673.60 is: 234,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,490.80 : 613,944.60 = 156,673.60 : x
  2. Step 2: Convert to fraction form
    409,490.80/613,944.60 = 156,673.60/x
  3. Step 3: Cross multiply
    409,490.80x = 613,944.60 × 156,673.60
  4. Step 4: Simplify right side
    409,490.80x = 96,188,910,682.56
  5. Step 5: Solve for x
    x = 96,188,910,682.56/409,490.80
  6. Step 6: Final answer
    x = 234,898.83

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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.