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Finding the Fourth Proportional to 3,008.04, 4,512.17 and 816.83

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Solution

The fourth proportional to 3,008.04, 4,512.17 and 816.83 is: 1,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.04 : 4,512.17 = 816.83 : x
  2. Step 2: Convert to fraction form
    3,008.04/4,512.17 = 816.83/x
  3. Step 3: Cross multiply
    3,008.04x = 4,512.17 × 816.83
  4. Step 4: Simplify right side
    3,008.04x = 3,685,649.18
  5. Step 5: Solve for x
    x = 3,685,649.18/3,008.04
  6. Step 6: Final answer
    x = 1,225.27

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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.