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Finding the Fourth Proportional to 933.44, 1,288.24 and 700.16

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Solution

The fourth proportional to 933.44, 1,288.24 and 700.16 is: 966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.44 : 1,288.24 = 700.16 : x
  2. Step 2: Convert to fraction form
    933.44/1,288.24 = 700.16/x
  3. Step 3: Cross multiply
    933.44x = 1,288.24 × 700.16
  4. Step 4: Simplify right side
    933.44x = 901,965.93
  5. Step 5: Solve for x
    x = 901,965.93/933.44
  6. Step 6: Final answer
    x = 966.29

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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.