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Finding the Fourth Proportional to 767,361.16, 1,150,886.22 and 261,647.92

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Solution

The fourth proportional to 767,361.16, 1,150,886.22 and 261,647.92 is: 392,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,361.16 : 1,150,886.22 = 261,647.92 : x
  2. Step 2: Convert to fraction form
    767,361.16/1,150,886.22 = 261,647.92/x
  3. Step 3: Cross multiply
    767,361.16x = 1,150,886.22 × 261,647.92
  4. Step 4: Simplify right side
    767,361.16x = 301,126,985,619.66
  5. Step 5: Solve for x
    x = 301,126,985,619.66/767,361.16
  6. Step 6: Final answer
    x = 392,418.85

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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.