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Finding the Fourth Proportional to 505.42, 696.56 and 337.08

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Solution

The fourth proportional to 505.42, 696.56 and 337.08 is: 464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.42 : 696.56 = 337.08 : x
  2. Step 2: Convert to fraction form
    505.42/696.56 = 337.08/x
  3. Step 3: Cross multiply
    505.42x = 696.56 × 337.08
  4. Step 4: Simplify right side
    505.42x = 234,796.44
  5. Step 5: Solve for x
    x = 234,796.44/505.42
  6. Step 6: Final answer
    x = 464.56

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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.