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Finding the Fourth Proportional to 262,369.20, 393,424.40 and 110,538.55

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Solution

The fourth proportional to 262,369.20, 393,424.40 and 110,538.55 is: 165,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,369.20 : 393,424.40 = 110,538.55 : x
  2. Step 2: Convert to fraction form
    262,369.20/393,424.40 = 110,538.55/x
  3. Step 3: Cross multiply
    262,369.20x = 393,424.40 × 110,538.55
  4. Step 4: Simplify right side
    262,369.20x = 43,488,562,157.93
  5. Step 5: Solve for x
    x = 43,488,562,157.93/262,369.20
  6. Step 6: Final answer
    x = 165,753.31

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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.