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Finding the Fourth Proportional to 704.67, 1,056.75 and 242.32

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Solution

The fourth proportional to 704.67, 1,056.75 and 242.32 is: 363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.67 : 1,056.75 = 242.32 : x
  2. Step 2: Convert to fraction form
    704.67/1,056.75 = 242.32/x
  3. Step 3: Cross multiply
    704.67x = 1,056.75 × 242.32
  4. Step 4: Simplify right side
    704.67x = 256,073.39
  5. Step 5: Solve for x
    x = 256,073.39/704.67
  6. Step 6: Final answer
    x = 363.39

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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.