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Finding the Fourth Proportional to 361,665.54, 499,095.99 and 200,520.63

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Solution

The fourth proportional to 361,665.54, 499,095.99 and 200,520.63 is: 276,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,665.54 : 499,095.99 = 200,520.63 : x
  2. Step 2: Convert to fraction form
    361,665.54/499,095.99 = 200,520.63/x
  3. Step 3: Cross multiply
    361,665.54x = 499,095.99 × 200,520.63
  4. Step 4: Simplify right side
    361,665.54x = 100,079,042,345.27
  5. Step 5: Solve for x
    x = 100,079,042,345.27/361,665.54
  6. Step 6: Final answer
    x = 276,717.11

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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.