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Finding the Fourth Proportional to 995.32, 1,493.34 and 953.92

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Solution

The fourth proportional to 995.32, 1,493.34 and 953.92 is: 1,431.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.32 : 1,493.34 = 953.92 : x
  2. Step 2: Convert to fraction form
    995.32/1,493.34 = 953.92/x
  3. Step 3: Cross multiply
    995.32x = 1,493.34 × 953.92
  4. Step 4: Simplify right side
    995.32x = 1,424,526.89
  5. Step 5: Solve for x
    x = 1,424,526.89/995.32
  6. Step 6: Final answer
    x = 1,431.23

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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.