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Finding the Fourth Proportional to 472.96, 708.96 and 336

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Solution

The fourth proportional to 472.96, 708.96 and 336 is: 503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.96 : 708.96 = 336 : x
  2. Step 2: Convert to fraction form
    472.96/708.96 = 336/x
  3. Step 3: Cross multiply
    472.96x = 708.96 × 336
  4. Step 4: Simplify right side
    472.96x = 238,210.56
  5. Step 5: Solve for x
    x = 238,210.56/472.96
  6. Step 6: Final answer
    x = 503.66

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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.