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Finding the Fourth Proportional to 3,094.38, 4,641.83 and 785.88

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Solution

The fourth proportional to 3,094.38, 4,641.83 and 785.88 is: 1,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,094.38 : 4,641.83 = 785.88 : x
  2. Step 2: Convert to fraction form
    3,094.38/4,641.83 = 785.88/x
  3. Step 3: Cross multiply
    3,094.38x = 4,641.83 × 785.88
  4. Step 4: Simplify right side
    3,094.38x = 3,647,921.36
  5. Step 5: Solve for x
    x = 3,647,921.36/3,094.38
  6. Step 6: Final answer
    x = 1,178.89

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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.