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Finding the Fourth Proportional to 3,644.80, 5,467.16 and 1,012.32

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Solution

The fourth proportional to 3,644.80, 5,467.16 and 1,012.32 is: 1,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.80 : 5,467.16 = 1,012.32 : x
  2. Step 2: Convert to fraction form
    3,644.80/5,467.16 = 1,012.32/x
  3. Step 3: Cross multiply
    3,644.80x = 5,467.16 × 1,012.32
  4. Step 4: Simplify right side
    3,644.80x = 5,534,515.41
  5. Step 5: Solve for x
    x = 5,534,515.41/3,644.80
  6. Step 6: Final answer
    x = 1,518.47

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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.