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Finding the Fourth Proportional to 1,563.62, 2,343 and 589.19

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Solution

The fourth proportional to 1,563.62, 2,343 and 589.19 is: 882.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.62 : 2,343 = 589.19 : x
  2. Step 2: Convert to fraction form
    1,563.62/2,343 = 589.19/x
  3. Step 3: Cross multiply
    1,563.62x = 2,343 × 589.19
  4. Step 4: Simplify right side
    1,563.62x = 1,380,472.17
  5. Step 5: Solve for x
    x = 1,380,472.17/1,563.62
  6. Step 6: Final answer
    x = 882.87

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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.