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Finding the Fourth Proportional to 1,576.05, 2,364.17 and 651.59

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Solution

The fourth proportional to 1,576.05, 2,364.17 and 651.59 is: 977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.05 : 2,364.17 = 651.59 : x
  2. Step 2: Convert to fraction form
    1,576.05/2,364.17 = 651.59/x
  3. Step 3: Cross multiply
    1,576.05x = 2,364.17 × 651.59
  4. Step 4: Simplify right side
    1,576.05x = 1,540,454.45
  5. Step 5: Solve for x
    x = 1,540,454.45/1,576.05
  6. Step 6: Final answer
    x = 977.41

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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.