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Finding the Fourth Proportional to 295.48, 442.86 and 222.16

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Solution

The fourth proportional to 295.48, 442.86 and 222.16 is: 332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.48 : 442.86 = 222.16 : x
  2. Step 2: Convert to fraction form
    295.48/442.86 = 222.16/x
  3. Step 3: Cross multiply
    295.48x = 442.86 × 222.16
  4. Step 4: Simplify right side
    295.48x = 98,385.78
  5. Step 5: Solve for x
    x = 98,385.78/295.48
  6. Step 6: Final answer
    x = 332.97

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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.