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Finding the Fourth Proportional to 367,086.70, 550,630.05 and 255,112.30

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Solution

The fourth proportional to 367,086.70, 550,630.05 and 255,112.30 is: 382,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,086.70 : 550,630.05 = 255,112.30 : x
  2. Step 2: Convert to fraction form
    367,086.70/550,630.05 = 255,112.30/x
  3. Step 3: Cross multiply
    367,086.70x = 550,630.05 × 255,112.30
  4. Step 4: Simplify right side
    367,086.70x = 140,472,498,504.62
  5. Step 5: Solve for x
    x = 140,472,498,504.62/367,086.70
  6. Step 6: Final answer
    x = 382,668.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.