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Finding the Fourth Proportional to 704.23, 1,052.41 and 631.96

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Solution

The fourth proportional to 704.23, 1,052.41 and 631.96 is: 944.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.23 : 1,052.41 = 631.96 : x
  2. Step 2: Convert to fraction form
    704.23/1,052.41 = 631.96/x
  3. Step 3: Cross multiply
    704.23x = 1,052.41 × 631.96
  4. Step 4: Simplify right side
    704.23x = 665,081.02
  5. Step 5: Solve for x
    x = 665,081.02/704.23
  6. Step 6: Final answer
    x = 944.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.