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Finding the Fourth Proportional to 1,267.30, 1,748.33 and 794.87

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Solution

The fourth proportional to 1,267.30, 1,748.33 and 794.87 is: 1,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.30 : 1,748.33 = 794.87 : x
  2. Step 2: Convert to fraction form
    1,267.30/1,748.33 = 794.87/x
  3. Step 3: Cross multiply
    1,267.30x = 1,748.33 × 794.87
  4. Step 4: Simplify right side
    1,267.30x = 1,389,695.07
  5. Step 5: Solve for x
    x = 1,389,695.07/1,267.30
  6. Step 6: Final answer
    x = 1,096.58

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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.