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Finding the Fourth Proportional to 995.94, 1,374.46 and 576.42

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Solution

The fourth proportional to 995.94, 1,374.46 and 576.42 is: 795.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.94 : 1,374.46 = 576.42 : x
  2. Step 2: Convert to fraction form
    995.94/1,374.46 = 576.42/x
  3. Step 3: Cross multiply
    995.94x = 1,374.46 × 576.42
  4. Step 4: Simplify right side
    995.94x = 792,266.23
  5. Step 5: Solve for x
    x = 792,266.23/995.94
  6. Step 6: Final answer
    x = 795.50

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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.