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Finding the Fourth Proportional to 366,505.21, 550,362.42 and 247,327.83

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Solution

The fourth proportional to 366,505.21, 550,362.42 and 247,327.83 is: 371,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,505.21 : 550,362.42 = 247,327.83 : x
  2. Step 2: Convert to fraction form
    366,505.21/550,362.42 = 247,327.83/x
  3. Step 3: Cross multiply
    366,505.21x = 550,362.42 × 247,327.83
  4. Step 4: Simplify right side
    366,505.21x = 136,119,943,747.76
  5. Step 5: Solve for x
    x = 136,119,943,747.76/366,505.21
  6. Step 6: Final answer
    x = 371,399.76

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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.