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Finding the Fourth Proportional to 622,328.80, 933,147.60 and 247,928.80

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Solution

The fourth proportional to 622,328.80, 933,147.60 and 247,928.80 is: 371,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,328.80 : 933,147.60 = 247,928.80 : x
  2. Step 2: Convert to fraction form
    622,328.80/933,147.60 = 247,928.80/x
  3. Step 3: Cross multiply
    622,328.80x = 933,147.60 × 247,928.80
  4. Step 4: Simplify right side
    622,328.80x = 231,354,164,690.88
  5. Step 5: Solve for x
    x = 231,354,164,690.88/622,328.80
  6. Step 6: Final answer
    x = 371,755.52

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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.