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Finding the Fourth Proportional to 1,048.36, 1,448.66 and 799.24

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Solution

The fourth proportional to 1,048.36, 1,448.66 and 799.24 is: 1,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.36 : 1,448.66 = 799.24 : x
  2. Step 2: Convert to fraction form
    1,048.36/1,448.66 = 799.24/x
  3. Step 3: Cross multiply
    1,048.36x = 1,448.66 × 799.24
  4. Step 4: Simplify right side
    1,048.36x = 1,157,827.02
  5. Step 5: Solve for x
    x = 1,157,827.02/1,048.36
  6. Step 6: Final answer
    x = 1,104.42

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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.