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Finding the Fourth Proportional to 1,116.73, 1,674.60 and 492.01

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Solution

The fourth proportional to 1,116.73, 1,674.60 and 492.01 is: 737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.73 : 1,674.60 = 492.01 : x
  2. Step 2: Convert to fraction form
    1,116.73/1,674.60 = 492.01/x
  3. Step 3: Cross multiply
    1,116.73x = 1,674.60 × 492.01
  4. Step 4: Simplify right side
    1,116.73x = 823,921.18
  5. Step 5: Solve for x
    x = 823,921.18/1,116.73
  6. Step 6: Final answer
    x = 737.80

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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.