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Finding the Fourth Proportional to 1,202.16, 1,659.16 and 736.88

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Solution

The fourth proportional to 1,202.16, 1,659.16 and 736.88 is: 1,017.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.16 : 1,659.16 = 736.88 : x
  2. Step 2: Convert to fraction form
    1,202.16/1,659.16 = 736.88/x
  3. Step 3: Cross multiply
    1,202.16x = 1,659.16 × 736.88
  4. Step 4: Simplify right side
    1,202.16x = 1,222,601.82
  5. Step 5: Solve for x
    x = 1,222,601.82/1,202.16
  6. Step 6: Final answer
    x = 1,017.00

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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.