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Finding the Fourth Proportional to 1,576.88, 2,365.73 and 652.13

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Solution

The fourth proportional to 1,576.88, 2,365.73 and 652.13 is: 978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.88 : 2,365.73 = 652.13 : x
  2. Step 2: Convert to fraction form
    1,576.88/2,365.73 = 652.13/x
  3. Step 3: Cross multiply
    1,576.88x = 2,365.73 × 652.13
  4. Step 4: Simplify right side
    1,576.88x = 1,542,760.24
  5. Step 5: Solve for x
    x = 1,542,760.24/1,576.88
  6. Step 6: Final answer
    x = 978.36

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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.