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Finding the Fourth Proportional to 361,039.80, 498,253.32 and 199,912.62

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Solution

The fourth proportional to 361,039.80, 498,253.32 and 199,912.62 is: 275,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,039.80 : 498,253.32 = 199,912.62 : x
  2. Step 2: Convert to fraction form
    361,039.80/498,253.32 = 199,912.62/x
  3. Step 3: Cross multiply
    361,039.80x = 498,253.32 × 199,912.62
  4. Step 4: Simplify right side
    361,039.80x = 99,607,126,624.90
  5. Step 5: Solve for x
    x = 99,607,126,624.90/361,039.80
  6. Step 6: Final answer
    x = 275,889.60

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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.