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Finding the Fourth Proportional to 1,304.54, 1,955.12 and 995.25

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Solution

The fourth proportional to 1,304.54, 1,955.12 and 995.25 is: 1,491.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.54 : 1,955.12 = 995.25 : x
  2. Step 2: Convert to fraction form
    1,304.54/1,955.12 = 995.25/x
  3. Step 3: Cross multiply
    1,304.54x = 1,955.12 × 995.25
  4. Step 4: Simplify right side
    1,304.54x = 1,945,828.20
  5. Step 5: Solve for x
    x = 1,945,828.20/1,304.54
  6. Step 6: Final answer
    x = 1,491.59

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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.