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Finding the Fourth Proportional to 361,728.48, 499,236.96 and 200,619.36

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Solution

The fourth proportional to 361,728.48, 499,236.96 and 200,619.36 is: 276,883.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,728.48 : 499,236.96 = 200,619.36 : x
  2. Step 2: Convert to fraction form
    361,728.48/499,236.96 = 200,619.36/x
  3. Step 3: Cross multiply
    361,728.48x = 499,236.96 × 200,619.36
  4. Step 4: Simplify right side
    361,728.48x = 100,156,599,403.55
  5. Step 5: Solve for x
    x = 100,156,599,403.55/361,728.48
  6. Step 6: Final answer
    x = 276,883.37

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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.