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Finding the Fourth Proportional to 349.44, 482.27 and 202.16

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Solution

The fourth proportional to 349.44, 482.27 and 202.16 is: 279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.44 : 482.27 = 202.16 : x
  2. Step 2: Convert to fraction form
    349.44/482.27 = 202.16/x
  3. Step 3: Cross multiply
    349.44x = 482.27 × 202.16
  4. Step 4: Simplify right side
    349.44x = 97,492.28
  5. Step 5: Solve for x
    x = 97,492.28/349.44
  6. Step 6: Final answer
    x = 279.00

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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.