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Finding the Fourth Proportional to 361,841.12, 499,320.36 and 200,684.60

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Solution

The fourth proportional to 361,841.12, 499,320.36 and 200,684.60 is: 276,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,841.12 : 499,320.36 = 200,684.60 : x
  2. Step 2: Convert to fraction form
    361,841.12/499,320.36 = 200,684.60/x
  3. Step 3: Cross multiply
    361,841.12x = 499,320.36 × 200,684.60
  4. Step 4: Simplify right side
    361,841.12x = 100,205,906,718.46
  5. Step 5: Solve for x
    x = 100,205,906,718.46/361,841.12
  6. Step 6: Final answer
    x = 276,933.44

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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.