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Finding the Fourth Proportional to 472.48, 707.76 and 244

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Solution

The fourth proportional to 472.48, 707.76 and 244 is: 365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.48 : 707.76 = 244 : x
  2. Step 2: Convert to fraction form
    472.48/707.76 = 244/x
  3. Step 3: Cross multiply
    472.48x = 707.76 × 244
  4. Step 4: Simplify right side
    472.48x = 172,693.44
  5. Step 5: Solve for x
    x = 172,693.44/472.48
  6. Step 6: Final answer
    x = 365.50

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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.