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Finding the Fourth Proportional to 459.65, 634.29 and 263.16

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Solution

The fourth proportional to 459.65, 634.29 and 263.16 is: 363.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.65 : 634.29 = 263.16 : x
  2. Step 2: Convert to fraction form
    459.65/634.29 = 263.16/x
  3. Step 3: Cross multiply
    459.65x = 634.29 × 263.16
  4. Step 4: Simplify right side
    459.65x = 166,919.76
  5. Step 5: Solve for x
    x = 166,919.76/459.65
  6. Step 6: Final answer
    x = 363.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.