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Finding the Fourth Proportional to 1,234, 1,704.18 and 922.96

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Solution

The fourth proportional to 1,234, 1,704.18 and 922.96 is: 1,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234 : 1,704.18 = 922.96 : x
  2. Step 2: Convert to fraction form
    1,234/1,704.18 = 922.96/x
  3. Step 3: Cross multiply
    1,234x = 1,704.18 × 922.96
  4. Step 4: Simplify right side
    1,234x = 1,572,889.97
  5. Step 5: Solve for x
    x = 1,572,889.97/1,234
  6. Step 6: Final answer
    x = 1,274.63

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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.