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Finding the Fourth Proportional to 463,322, 639,380.04 and 262,118

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Solution

The fourth proportional to 463,322, 639,380.04 and 262,118 is: 361,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,322 : 639,380.04 = 262,118 : x
  2. Step 2: Convert to fraction form
    463,322/639,380.04 = 262,118/x
  3. Step 3: Cross multiply
    463,322x = 639,380.04 × 262,118
  4. Step 4: Simplify right side
    463,322x = 167,593,017,324.72
  5. Step 5: Solve for x
    x = 167,593,017,324.72/463,322
  6. Step 6: Final answer
    x = 361,720.40

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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.