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Finding the Fourth Proportional to 1,004.52, 1,504.20 and 744.16

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Solution

The fourth proportional to 1,004.52, 1,504.20 and 744.16 is: 1,114.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.52 : 1,504.20 = 744.16 : x
  2. Step 2: Convert to fraction form
    1,004.52/1,504.20 = 744.16/x
  3. Step 3: Cross multiply
    1,004.52x = 1,504.20 × 744.16
  4. Step 4: Simplify right side
    1,004.52x = 1,119,365.47
  5. Step 5: Solve for x
    x = 1,119,365.47/1,004.52
  6. Step 6: Final answer
    x = 1,114.33

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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.