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Finding the Fourth Proportional to 855.97, 1,181.70 and 593.53

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Solution

The fourth proportional to 855.97, 1,181.70 and 593.53 is: 819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.97 : 1,181.70 = 593.53 : x
  2. Step 2: Convert to fraction form
    855.97/1,181.70 = 593.53/x
  3. Step 3: Cross multiply
    855.97x = 1,181.70 × 593.53
  4. Step 4: Simplify right side
    855.97x = 701,371.45
  5. Step 5: Solve for x
    x = 701,371.45/855.97
  6. Step 6: Final answer
    x = 819.39

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Double scale
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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.