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Finding the Fourth Proportional to 1,693.17, 2,336.45 and 994.41

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Solution

The fourth proportional to 1,693.17, 2,336.45 and 994.41 is: 1,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.17 : 2,336.45 = 994.41 : x
  2. Step 2: Convert to fraction form
    1,693.17/2,336.45 = 994.41/x
  3. Step 3: Cross multiply
    1,693.17x = 2,336.45 × 994.41
  4. Step 4: Simplify right side
    1,693.17x = 2,323,384.27
  5. Step 5: Solve for x
    x = 2,323,384.27/1,693.17
  6. Step 6: Final answer
    x = 1,372.21

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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.