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Finding the Fourth Proportional to 551.11, 760.77 and 364.69

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Solution

The fourth proportional to 551.11, 760.77 and 364.69 is: 503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.11 : 760.77 = 364.69 : x
  2. Step 2: Convert to fraction form
    551.11/760.77 = 364.69/x
  3. Step 3: Cross multiply
    551.11x = 760.77 × 364.69
  4. Step 4: Simplify right side
    551.11x = 277,445.21
  5. Step 5: Solve for x
    x = 277,445.21/551.11
  6. Step 6: Final answer
    x = 503.43

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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.