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Finding the Fourth Proportional to 848.97, 1,172.79 and 701.55

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Solution

The fourth proportional to 848.97, 1,172.79 and 701.55 is: 969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.97 : 1,172.79 = 701.55 : x
  2. Step 2: Convert to fraction form
    848.97/1,172.79 = 701.55/x
  3. Step 3: Cross multiply
    848.97x = 1,172.79 × 701.55
  4. Step 4: Simplify right side
    848.97x = 822,770.82
  5. Step 5: Solve for x
    x = 822,770.82/848.97
  6. Step 6: Final answer
    x = 969.14

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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.