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Finding the Fourth Proportional to 1,363.76, 1,881.97 and 892.44

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Solution

The fourth proportional to 1,363.76, 1,881.97 and 892.44 is: 1,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.76 : 1,881.97 = 892.44 : x
  2. Step 2: Convert to fraction form
    1,363.76/1,881.97 = 892.44/x
  3. Step 3: Cross multiply
    1,363.76x = 1,881.97 × 892.44
  4. Step 4: Simplify right side
    1,363.76x = 1,679,552.13
  5. Step 5: Solve for x
    x = 1,679,552.13/1,363.76
  6. Step 6: Final answer
    x = 1,231.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.