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Finding the Fourth Proportional to 470.67, 706 and 226.99

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Solution

The fourth proportional to 470.67, 706 and 226.99 is: 340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.67 : 706 = 226.99 : x
  2. Step 2: Convert to fraction form
    470.67/706 = 226.99/x
  3. Step 3: Cross multiply
    470.67x = 706 × 226.99
  4. Step 4: Simplify right side
    470.67x = 160,254.94
  5. Step 5: Solve for x
    x = 160,254.94/470.67
  6. Step 6: Final answer
    x = 340.48

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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.