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Finding the Fourth Proportional to 3,051.03, 4,576.82 and 859.76

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Solution

The fourth proportional to 3,051.03, 4,576.82 and 859.76 is: 1,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.03 : 4,576.82 = 859.76 : x
  2. Step 2: Convert to fraction form
    3,051.03/4,576.82 = 859.76/x
  3. Step 3: Cross multiply
    3,051.03x = 4,576.82 × 859.76
  4. Step 4: Simplify right side
    3,051.03x = 3,934,939.58
  5. Step 5: Solve for x
    x = 3,934,939.58/3,051.03
  6. Step 6: Final answer
    x = 1,289.71

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Double scale
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1.5x scale

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.