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Finding the Fourth Proportional to 2,404.28, 3,606.42 and 761.00

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Solution

The fourth proportional to 2,404.28, 3,606.42 and 761.00 is: 1,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,404.28 : 3,606.42 = 761.00 : x
  2. Step 2: Convert to fraction form
    2,404.28/3,606.42 = 761.00/x
  3. Step 3: Cross multiply
    2,404.28x = 3,606.42 × 761.00
  4. Step 4: Simplify right side
    2,404.28x = 2,744,470.44
  5. Step 5: Solve for x
    x = 2,744,470.44/2,404.28
  6. Step 6: Final answer
    x = 1,141.49

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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.