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Finding the Fourth Proportional to 1,576.77, 2,363.42 and 651.83

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Solution

The fourth proportional to 1,576.77, 2,363.42 and 651.83 is: 977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.77 : 2,363.42 = 651.83 : x
  2. Step 2: Convert to fraction form
    1,576.77/2,363.42 = 651.83/x
  3. Step 3: Cross multiply
    1,576.77x = 2,363.42 × 651.83
  4. Step 4: Simplify right side
    1,576.77x = 1,540,532.98
  5. Step 5: Solve for x
    x = 1,540,532.98/1,576.77
  6. Step 6: Final answer
    x = 977.02

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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.