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Finding the Fourth Proportional to 1,795.13, 2,693.60 and 699.20

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Solution

The fourth proportional to 1,795.13, 2,693.60 and 699.20 is: 1,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.13 : 2,693.60 = 699.20 : x
  2. Step 2: Convert to fraction form
    1,795.13/2,693.60 = 699.20/x
  3. Step 3: Cross multiply
    1,795.13x = 2,693.60 × 699.20
  4. Step 4: Simplify right side
    1,795.13x = 1,883,365.12
  5. Step 5: Solve for x
    x = 1,883,365.12/1,795.13
  6. Step 6: Final answer
    x = 1,049.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.