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Finding the Fourth Proportional to 622,630.44, 933,069.60 and 355,991.40

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Solution

The fourth proportional to 622,630.44, 933,069.60 and 355,991.40 is: 533,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,630.44 : 933,069.60 = 355,991.40 : x
  2. Step 2: Convert to fraction form
    622,630.44/933,069.60 = 355,991.40/x
  3. Step 3: Cross multiply
    622,630.44x = 933,069.60 × 355,991.40
  4. Step 4: Simplify right side
    622,630.44x = 332,164,753,201.44
  5. Step 5: Solve for x
    x = 332,164,753,201.44/622,630.44
  6. Step 6: Final answer
    x = 533,486.21

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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.