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Finding the Fourth Proportional to 361,389.58, 498,717.13 and 200,255.06

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Solution

The fourth proportional to 361,389.58, 498,717.13 and 200,255.06 is: 276,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,389.58 : 498,717.13 = 200,255.06 : x
  2. Step 2: Convert to fraction form
    361,389.58/498,717.13 = 200,255.06/x
  3. Step 3: Cross multiply
    361,389.58x = 498,717.13 × 200,255.06
  4. Step 4: Simplify right side
    361,389.58x = 99,870,628,791.18
  5. Step 5: Solve for x
    x = 99,870,628,791.18/361,389.58
  6. Step 6: Final answer
    x = 276,351.71

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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.