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Finding the Fourth Proportional to 1,116.91, 1,675.22 and 295.25

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Solution

The fourth proportional to 1,116.91, 1,675.22 and 295.25 is: 442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.91 : 1,675.22 = 295.25 : x
  2. Step 2: Convert to fraction form
    1,116.91/1,675.22 = 295.25/x
  3. Step 3: Cross multiply
    1,116.91x = 1,675.22 × 295.25
  4. Step 4: Simplify right side
    1,116.91x = 494,608.71
  5. Step 5: Solve for x
    x = 494,608.71/1,116.91
  6. Step 6: Final answer
    x = 442.84

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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.