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Finding the Fourth Proportional to 995.45, 1,493.22 and 265.02

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Solution

The fourth proportional to 995.45, 1,493.22 and 265.02 is: 397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.45 : 1,493.22 = 265.02 : x
  2. Step 2: Convert to fraction form
    995.45/1,493.22 = 265.02/x
  3. Step 3: Cross multiply
    995.45x = 1,493.22 × 265.02
  4. Step 4: Simplify right side
    995.45x = 395,733.16
  5. Step 5: Solve for x
    x = 395,733.16/995.45
  6. Step 6: Final answer
    x = 397.54

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Double scale
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1.5x scale

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.