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Finding the Fourth Proportional to 910.44, 1,365.93 and 294.14

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Solution

The fourth proportional to 910.44, 1,365.93 and 294.14 is: 441.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.44 : 1,365.93 = 294.14 : x
  2. Step 2: Convert to fraction form
    910.44/1,365.93 = 294.14/x
  3. Step 3: Cross multiply
    910.44x = 1,365.93 × 294.14
  4. Step 4: Simplify right side
    910.44x = 401,774.65
  5. Step 5: Solve for x
    x = 401,774.65/910.44
  6. Step 6: Final answer
    x = 441.30

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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.