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Finding the Fourth Proportional to 922,238.64, 1,383,571.80 and 361,278

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Solution

The fourth proportional to 922,238.64, 1,383,571.80 and 361,278 is: 542,000.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,238.64 : 1,383,571.80 = 361,278 : x
  2. Step 2: Convert to fraction form
    922,238.64/1,383,571.80 = 361,278/x
  3. Step 3: Cross multiply
    922,238.64x = 1,383,571.80 × 361,278
  4. Step 4: Simplify right side
    922,238.64x = 499,854,052,760.40
  5. Step 5: Solve for x
    x = 499,854,052,760.40/922,238.64
  6. Step 6: Final answer
    x = 542,000.77

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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.