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Finding the Fourth Proportional to 1,704.69, 2,351.28 and 1,647.54

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Solution

The fourth proportional to 1,704.69, 2,351.28 and 1,647.54 is: 2,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.69 : 2,351.28 = 1,647.54 : x
  2. Step 2: Convert to fraction form
    1,704.69/2,351.28 = 1,647.54/x
  3. Step 3: Cross multiply
    1,704.69x = 2,351.28 × 1,647.54
  4. Step 4: Simplify right side
    1,704.69x = 3,873,827.85
  5. Step 5: Solve for x
    x = 3,873,827.85/1,704.69
  6. Step 6: Final answer
    x = 2,272.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.