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Finding the Fourth Proportional to 322.04, 444.47 and 191.03

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Solution

The fourth proportional to 322.04, 444.47 and 191.03 is: 263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.04 : 444.47 = 191.03 : x
  2. Step 2: Convert to fraction form
    322.04/444.47 = 191.03/x
  3. Step 3: Cross multiply
    322.04x = 444.47 × 191.03
  4. Step 4: Simplify right side
    322.04x = 84,903.93
  5. Step 5: Solve for x
    x = 84,903.93/322.04
  6. Step 6: Final answer
    x = 263.64

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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.