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Finding the Fourth Proportional to 666,200.73, 999,682.01 and 281,919.32

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Solution

The fourth proportional to 666,200.73, 999,682.01 and 281,919.32 is: 423,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,200.73 : 999,682.01 = 281,919.32 : x
  2. Step 2: Convert to fraction form
    666,200.73/999,682.01 = 281,919.32/x
  3. Step 3: Cross multiply
    666,200.73x = 999,682.01 × 281,919.32
  4. Step 4: Simplify right side
    666,200.73x = 281,829,666,067.43
  5. Step 5: Solve for x
    x = 281,829,666,067.43/666,200.73
  6. Step 6: Final answer
    x = 423,040.16

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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.