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Finding the Fourth Proportional to 674.98, 1,016.44 and 589.34

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Solution

The fourth proportional to 674.98, 1,016.44 and 589.34 is: 887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.98 : 1,016.44 = 589.34 : x
  2. Step 2: Convert to fraction form
    674.98/1,016.44 = 589.34/x
  3. Step 3: Cross multiply
    674.98x = 1,016.44 × 589.34
  4. Step 4: Simplify right side
    674.98x = 599,028.75
  5. Step 5: Solve for x
    x = 599,028.75/674.98
  6. Step 6: Final answer
    x = 887.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.