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Finding the Fourth Proportional to 995.85, 1,373.72 and 925.46

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Solution

The fourth proportional to 995.85, 1,373.72 and 925.46 is: 1,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.85 : 1,373.72 = 925.46 : x
  2. Step 2: Convert to fraction form
    995.85/1,373.72 = 925.46/x
  3. Step 3: Cross multiply
    995.85x = 1,373.72 × 925.46
  4. Step 4: Simplify right side
    995.85x = 1,271,311.42
  5. Step 5: Solve for x
    x = 1,271,311.42/995.85
  6. Step 6: Final answer
    x = 1,276.61

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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.