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Finding the Fourth Proportional to 848.80, 1,170.61 and 682.95

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Solution

The fourth proportional to 848.80, 1,170.61 and 682.95 is: 941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.80 : 1,170.61 = 682.95 : x
  2. Step 2: Convert to fraction form
    848.80/1,170.61 = 682.95/x
  3. Step 3: Cross multiply
    848.80x = 1,170.61 × 682.95
  4. Step 4: Simplify right side
    848.80x = 799,468.10
  5. Step 5: Solve for x
    x = 799,468.10/848.80
  6. Step 6: Final answer
    x = 941.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.