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Finding the Fourth Proportional to 364.42, 502.62 and 258.04

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Solution

The fourth proportional to 364.42, 502.62 and 258.04 is: 355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.42 : 502.62 = 258.04 : x
  2. Step 2: Convert to fraction form
    364.42/502.62 = 258.04/x
  3. Step 3: Cross multiply
    364.42x = 502.62 × 258.04
  4. Step 4: Simplify right side
    364.42x = 129,697.18
  5. Step 5: Solve for x
    x = 129,697.18/364.42
  6. Step 6: Final answer
    x = 355.90

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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.