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Finding the Fourth Proportional to 1,094.22, 1,641.96 and 607.56

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Solution

The fourth proportional to 1,094.22, 1,641.96 and 607.56 is: 911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.22 : 1,641.96 = 607.56 : x
  2. Step 2: Convert to fraction form
    1,094.22/1,641.96 = 607.56/x
  3. Step 3: Cross multiply
    1,094.22x = 1,641.96 × 607.56
  4. Step 4: Simplify right side
    1,094.22x = 997,589.22
  5. Step 5: Solve for x
    x = 997,589.22/1,094.22
  6. Step 6: Final answer
    x = 911.69

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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.