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Finding the Fourth Proportional to 356.67, 492.25 and 273.63

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Solution

The fourth proportional to 356.67, 492.25 and 273.63 is: 377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.67 : 492.25 = 273.63 : x
  2. Step 2: Convert to fraction form
    356.67/492.25 = 273.63/x
  3. Step 3: Cross multiply
    356.67x = 492.25 × 273.63
  4. Step 4: Simplify right side
    356.67x = 134,693.87
  5. Step 5: Solve for x
    x = 134,693.87/356.67
  6. Step 6: Final answer
    x = 377.64

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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.