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Finding the Fourth Proportional to 1,199.16, 1,654.74 and 733.32

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Solution

The fourth proportional to 1,199.16, 1,654.74 and 733.32 is: 1,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.16 : 1,654.74 = 733.32 : x
  2. Step 2: Convert to fraction form
    1,199.16/1,654.74 = 733.32/x
  3. Step 3: Cross multiply
    1,199.16x = 1,654.74 × 733.32
  4. Step 4: Simplify right side
    1,199.16x = 1,213,453.94
  5. Step 5: Solve for x
    x = 1,213,453.94/1,199.16
  6. Step 6: Final answer
    x = 1,011.92

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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.