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Finding the Fourth Proportional to 1,273.52, 1,757.04 and 832

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Solution

The fourth proportional to 1,273.52, 1,757.04 and 832 is: 1,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.52 : 1,757.04 = 832 : x
  2. Step 2: Convert to fraction form
    1,273.52/1,757.04 = 832/x
  3. Step 3: Cross multiply
    1,273.52x = 1,757.04 × 832
  4. Step 4: Simplify right side
    1,273.52x = 1,461,857.28
  5. Step 5: Solve for x
    x = 1,461,857.28/1,273.52
  6. Step 6: Final answer
    x = 1,147.89

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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.