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Finding the Fourth Proportional to 1,743.34, 2,615.28 and 589

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Solution

The fourth proportional to 1,743.34, 2,615.28 and 589 is: 883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.34 : 2,615.28 = 589 : x
  2. Step 2: Convert to fraction form
    1,743.34/2,615.28 = 589/x
  3. Step 3: Cross multiply
    1,743.34x = 2,615.28 × 589
  4. Step 4: Simplify right side
    1,743.34x = 1,540,399.92
  5. Step 5: Solve for x
    x = 1,540,399.92/1,743.34
  6. Step 6: Final answer
    x = 883.59

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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.