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Finding the Fourth Proportional to 795.08, 1,192.46 and 641.93

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Solution

The fourth proportional to 795.08, 1,192.46 and 641.93 is: 962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.08 : 1,192.46 = 641.93 : x
  2. Step 2: Convert to fraction form
    795.08/1,192.46 = 641.93/x
  3. Step 3: Cross multiply
    795.08x = 1,192.46 × 641.93
  4. Step 4: Simplify right side
    795.08x = 765,466.68
  5. Step 5: Solve for x
    x = 765,466.68/795.08
  6. Step 6: Final answer
    x = 962.75

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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.