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Finding the Fourth Proportional to 321,186.25, 443,225.26 and 185,225.92

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Solution

The fourth proportional to 321,186.25, 443,225.26 and 185,225.92 is: 255,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,186.25 : 443,225.26 = 185,225.92 : x
  2. Step 2: Convert to fraction form
    321,186.25/443,225.26 = 185,225.92/x
  3. Step 3: Cross multiply
    321,186.25x = 443,225.26 × 185,225.92
  4. Step 4: Simplify right side
    321,186.25x = 82,096,806,550.74
  5. Step 5: Solve for x
    x = 82,096,806,550.74/321,186.25
  6. Step 6: Final answer
    x = 255,604.98

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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.