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Finding the Fourth Proportional to 335.84, 463.20 and 325.28

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Solution

The fourth proportional to 335.84, 463.20 and 325.28 is: 448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.84 : 463.20 = 325.28 : x
  2. Step 2: Convert to fraction form
    335.84/463.20 = 325.28/x
  3. Step 3: Cross multiply
    335.84x = 463.20 × 325.28
  4. Step 4: Simplify right side
    335.84x = 150,669.70
  5. Step 5: Solve for x
    x = 150,669.70/335.84
  6. Step 6: Final answer
    x = 448.64

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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.