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Finding the Fourth Proportional to 1,473.26, 2,207.25 and 856.44

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Solution

The fourth proportional to 1,473.26, 2,207.25 and 856.44 is: 1,283.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.26 : 2,207.25 = 856.44 : x
  2. Step 2: Convert to fraction form
    1,473.26/2,207.25 = 856.44/x
  3. Step 3: Cross multiply
    1,473.26x = 2,207.25 × 856.44
  4. Step 4: Simplify right side
    1,473.26x = 1,890,377.19
  5. Step 5: Solve for x
    x = 1,890,377.19/1,473.26
  6. Step 6: Final answer
    x = 1,283.13

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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.