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Finding the Fourth Proportional to 704.74, 1,056.67 and 242.44

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Solution

The fourth proportional to 704.74, 1,056.67 and 242.44 is: 363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.74 : 1,056.67 = 242.44 : x
  2. Step 2: Convert to fraction form
    704.74/1,056.67 = 242.44/x
  3. Step 3: Cross multiply
    704.74x = 1,056.67 × 242.44
  4. Step 4: Simplify right side
    704.74x = 256,179.07
  5. Step 5: Solve for x
    x = 256,179.07/704.74
  6. Step 6: Final answer
    x = 363.51

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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.