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Finding the Fourth Proportional to 361,658.20, 499,117.90 and 200,563.80

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Solution

The fourth proportional to 361,658.20, 499,117.90 and 200,563.80 is: 276,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,658.20 : 499,117.90 = 200,563.80 : x
  2. Step 2: Convert to fraction form
    361,658.20/499,117.90 = 200,563.80/x
  3. Step 3: Cross multiply
    361,658.20x = 499,117.90 × 200,563.80
  4. Step 4: Simplify right side
    361,658.20x = 100,104,982,672.02
  5. Step 5: Solve for x
    x = 100,104,982,672.02/361,658.20
  6. Step 6: Final answer
    x = 276,794.45

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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.