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Finding the Fourth Proportional to 3,194.17, 4,790.54 and 885.85

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Solution

The fourth proportional to 3,194.17, 4,790.54 and 885.85 is: 1,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.17 : 4,790.54 = 885.85 : x
  2. Step 2: Convert to fraction form
    3,194.17/4,790.54 = 885.85/x
  3. Step 3: Cross multiply
    3,194.17x = 4,790.54 × 885.85
  4. Step 4: Simplify right side
    3,194.17x = 4,243,695.43
  5. Step 5: Solve for x
    x = 4,243,695.43/3,194.17
  6. Step 6: Final answer
    x = 1,328.58

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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.