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Finding the Fourth Proportional to 361,979.84, 499,522.64 and 198,635.84

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Solution

The fourth proportional to 361,979.84, 499,522.64 and 198,635.84 is: 274,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,979.84 : 499,522.64 = 198,635.84 : x
  2. Step 2: Convert to fraction form
    361,979.84/499,522.64 = 198,635.84/x
  3. Step 3: Cross multiply
    361,979.84x = 499,522.64 × 198,635.84
  4. Step 4: Simplify right side
    361,979.84x = 99,223,099,195.42
  5. Step 5: Solve for x
    x = 99,223,099,195.42/361,979.84
  6. Step 6: Final answer
    x = 274,112.22

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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.