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Finding the Fourth Proportional to 321,187.25, 443,226.64 and 185,226.92

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Solution

The fourth proportional to 321,187.25, 443,226.64 and 185,226.92 is: 255,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,187.25 : 443,226.64 = 185,226.92 : x
  2. Step 2: Convert to fraction form
    321,187.25/443,226.64 = 185,226.92/x
  3. Step 3: Cross multiply
    321,187.25x = 443,226.64 × 185,226.92
  4. Step 4: Simplify right side
    321,187.25x = 82,097,505,389.15
  5. Step 5: Solve for x
    x = 82,097,505,389.15/321,187.25
  6. Step 6: Final answer
    x = 255,606.36

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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.