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Finding the Fourth Proportional to 1,201.93, 1,658.69 and 704.94

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Solution

The fourth proportional to 1,201.93, 1,658.69 and 704.94 is: 972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.93 : 1,658.69 = 704.94 : x
  2. Step 2: Convert to fraction form
    1,201.93/1,658.69 = 704.94/x
  3. Step 3: Cross multiply
    1,201.93x = 1,658.69 × 704.94
  4. Step 4: Simplify right side
    1,201.93x = 1,169,276.93
  5. Step 5: Solve for x
    x = 1,169,276.93/1,201.93
  6. Step 6: Final answer
    x = 972.83

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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.