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Finding the Fourth Proportional to 1,566.67, 2,349.96 and 412.42

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Solution

The fourth proportional to 1,566.67, 2,349.96 and 412.42 is: 618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.67 : 2,349.96 = 412.42 : x
  2. Step 2: Convert to fraction form
    1,566.67/2,349.96 = 412.42/x
  3. Step 3: Cross multiply
    1,566.67x = 2,349.96 × 412.42
  4. Step 4: Simplify right side
    1,566.67x = 969,170.50
  5. Step 5: Solve for x
    x = 969,170.50/1,566.67
  6. Step 6: Final answer
    x = 618.62

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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.