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Finding the Fourth Proportional to 263,926.40, 395,630.40 and 130,827.20

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Solution

The fourth proportional to 263,926.40, 395,630.40 and 130,827.20 is: 196,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,926.40 : 395,630.40 = 130,827.20 : x
  2. Step 2: Convert to fraction form
    263,926.40/395,630.40 = 130,827.20/x
  3. Step 3: Cross multiply
    263,926.40x = 395,630.40 × 130,827.20
  4. Step 4: Simplify right side
    263,926.40x = 51,759,217,466.88
  5. Step 5: Solve for x
    x = 51,759,217,466.88/263,926.40
  6. Step 6: Final answer
    x = 196,112.32

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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.