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Finding the Fourth Proportional to 1,235.19, 1,704.29 and 737.73

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Solution

The fourth proportional to 1,235.19, 1,704.29 and 737.73 is: 1,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.19 : 1,704.29 = 737.73 : x
  2. Step 2: Convert to fraction form
    1,235.19/1,704.29 = 737.73/x
  3. Step 3: Cross multiply
    1,235.19x = 1,704.29 × 737.73
  4. Step 4: Simplify right side
    1,235.19x = 1,257,305.86
  5. Step 5: Solve for x
    x = 1,257,305.86/1,235.19
  6. Step 6: Final answer
    x = 1,017.90

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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.