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Finding the Fourth Proportional to 472.62, 704.73 and 415.08

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Solution

The fourth proportional to 472.62, 704.73 and 415.08 is: 618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.62 : 704.73 = 415.08 : x
  2. Step 2: Convert to fraction form
    472.62/704.73 = 415.08/x
  3. Step 3: Cross multiply
    472.62x = 704.73 × 415.08
  4. Step 4: Simplify right side
    472.62x = 292,519.33
  5. Step 5: Solve for x
    x = 292,519.33/472.62
  6. Step 6: Final answer
    x = 618.93

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.