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Finding the Fourth Proportional to 263,999.40, 395,999.10 and 248,447.40

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Solution

The fourth proportional to 263,999.40, 395,999.10 and 248,447.40 is: 372,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,999.40 : 395,999.10 = 248,447.40 : x
  2. Step 2: Convert to fraction form
    263,999.40/395,999.10 = 248,447.40/x
  3. Step 3: Cross multiply
    263,999.40x = 395,999.10 × 248,447.40
  4. Step 4: Simplify right side
    263,999.40x = 98,384,946,797.34
  5. Step 5: Solve for x
    x = 98,384,946,797.34/263,999.40
  6. Step 6: Final answer
    x = 372,671.10

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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.