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Finding the Fourth Proportional to 582.32, 873.55 and 217.11

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Solution

The fourth proportional to 582.32, 873.55 and 217.11 is: 325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.32 : 873.55 = 217.11 : x
  2. Step 2: Convert to fraction form
    582.32/873.55 = 217.11/x
  3. Step 3: Cross multiply
    582.32x = 873.55 × 217.11
  4. Step 4: Simplify right side
    582.32x = 189,656.44
  5. Step 5: Solve for x
    x = 189,656.44/582.32
  6. Step 6: Final answer
    x = 325.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.