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Finding the Fourth Proportional to 294.65, 441 and 217.58

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Solution

The fourth proportional to 294.65, 441 and 217.58 is: 325.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.65 : 441 = 217.58 : x
  2. Step 2: Convert to fraction form
    294.65/441 = 217.58/x
  3. Step 3: Cross multiply
    294.65x = 441 × 217.58
  4. Step 4: Simplify right side
    294.65x = 95,950.58
  5. Step 5: Solve for x
    x = 95,950.58/294.65
  6. Step 6: Final answer
    x = 325.65

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Why These Related Problems?

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