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Finding the Fourth Proportional to 267,612.60, 401,418.90 and 263,465.40

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Solution

The fourth proportional to 267,612.60, 401,418.90 and 263,465.40 is: 395,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,612.60 : 401,418.90 = 263,465.40 : x
  2. Step 2: Convert to fraction form
    267,612.60/401,418.90 = 263,465.40/x
  3. Step 3: Cross multiply
    267,612.60x = 401,418.90 × 263,465.40
  4. Step 4: Simplify right side
    267,612.60x = 105,759,991,056.06
  5. Step 5: Solve for x
    x = 105,759,991,056.06/267,612.60
  6. Step 6: Final answer
    x = 395,198.10

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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.