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Finding the Fourth Proportional to 1,576.61, 2,365.25 and 536.56

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Solution

The fourth proportional to 1,576.61, 2,365.25 and 536.56 is: 804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.61 : 2,365.25 = 536.56 : x
  2. Step 2: Convert to fraction form
    1,576.61/2,365.25 = 536.56/x
  3. Step 3: Cross multiply
    1,576.61x = 2,365.25 × 536.56
  4. Step 4: Simplify right side
    1,576.61x = 1,269,098.54
  5. Step 5: Solve for x
    x = 1,269,098.54/1,576.61
  6. Step 6: Final answer
    x = 804.95

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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.