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Finding the Fourth Proportional to 996.94, 1,495.41 and 448.83

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Solution

The fourth proportional to 996.94, 1,495.41 and 448.83 is: 673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.94 : 1,495.41 = 448.83 : x
  2. Step 2: Convert to fraction form
    996.94/1,495.41 = 448.83/x
  3. Step 3: Cross multiply
    996.94x = 1,495.41 × 448.83
  4. Step 4: Simplify right side
    996.94x = 671,184.87
  5. Step 5: Solve for x
    x = 671,184.87/996.94
  6. Step 6: Final answer
    x = 673.25

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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.