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Finding the Fourth Proportional to 1,304.91, 1,957.34 and 483.09

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Solution

The fourth proportional to 1,304.91, 1,957.34 and 483.09 is: 724.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.91 : 1,957.34 = 483.09 : x
  2. Step 2: Convert to fraction form
    1,304.91/1,957.34 = 483.09/x
  3. Step 3: Cross multiply
    1,304.91x = 1,957.34 × 483.09
  4. Step 4: Simplify right side
    1,304.91x = 945,568.97
  5. Step 5: Solve for x
    x = 945,568.97/1,304.91
  6. Step 6: Final answer
    x = 724.62

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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.