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Finding the Fourth Proportional to 795.12, 1,192.44 and 384.36

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Solution

The fourth proportional to 795.12, 1,192.44 and 384.36 is: 576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.12 : 1,192.44 = 384.36 : x
  2. Step 2: Convert to fraction form
    795.12/1,192.44 = 384.36/x
  3. Step 3: Cross multiply
    795.12x = 1,192.44 × 384.36
  4. Step 4: Simplify right side
    795.12x = 458,326.24
  5. Step 5: Solve for x
    x = 458,326.24/795.12
  6. Step 6: Final answer
    x = 576.42

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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.