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Finding the Fourth Proportional to 1,244.74, 1,866.81 and 367.01

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Solution

The fourth proportional to 1,244.74, 1,866.81 and 367.01 is: 550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.74 : 1,866.81 = 367.01 : x
  2. Step 2: Convert to fraction form
    1,244.74/1,866.81 = 367.01/x
  3. Step 3: Cross multiply
    1,244.74x = 1,866.81 × 367.01
  4. Step 4: Simplify right side
    1,244.74x = 685,128.60
  5. Step 5: Solve for x
    x = 685,128.60/1,244.74
  6. Step 6: Final answer
    x = 550.42

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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.