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Finding the Fourth Proportional to 3,404.90, 5,107.70 and 1,064.51

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Solution

The fourth proportional to 3,404.90, 5,107.70 and 1,064.51 is: 1,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.90 : 5,107.70 = 1,064.51 : x
  2. Step 2: Convert to fraction form
    3,404.90/5,107.70 = 1,064.51/x
  3. Step 3: Cross multiply
    3,404.90x = 5,107.70 × 1,064.51
  4. Step 4: Simplify right side
    3,404.90x = 5,437,197.73
  5. Step 5: Solve for x
    x = 5,437,197.73/3,404.90
  6. Step 6: Final answer
    x = 1,596.87

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1.5x scale

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.