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Finding the Fourth Proportional to 1,194.93, 1,793.93 and 921.21

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Solution

The fourth proportional to 1,194.93, 1,793.93 and 921.21 is: 1,383.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.93 : 1,793.93 = 921.21 : x
  2. Step 2: Convert to fraction form
    1,194.93/1,793.93 = 921.21/x
  3. Step 3: Cross multiply
    1,194.93x = 1,793.93 × 921.21
  4. Step 4: Simplify right side
    1,194.93x = 1,652,586.26
  5. Step 5: Solve for x
    x = 1,652,586.26/1,194.93
  6. Step 6: Final answer
    x = 1,383.00

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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.