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Finding the Fourth Proportional to 293.10, 404.88 and 228.45

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Solution

The fourth proportional to 293.10, 404.88 and 228.45 is: 315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.10 : 404.88 = 228.45 : x
  2. Step 2: Convert to fraction form
    293.10/404.88 = 228.45/x
  3. Step 3: Cross multiply
    293.10x = 404.88 × 228.45
  4. Step 4: Simplify right side
    293.10x = 92,494.84
  5. Step 5: Solve for x
    x = 92,494.84/293.10
  6. Step 6: Final answer
    x = 315.57

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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.