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Finding the Fourth Proportional to 624,946.80, 938,149.20 and 325,765.20

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Solution

The fourth proportional to 624,946.80, 938,149.20 and 325,765.20 is: 489,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,946.80 : 938,149.20 = 325,765.20 : x
  2. Step 2: Convert to fraction form
    624,946.80/938,149.20 = 325,765.20/x
  3. Step 3: Cross multiply
    624,946.80x = 938,149.20 × 325,765.20
  4. Step 4: Simplify right side
    624,946.80x = 305,616,361,767.84
  5. Step 5: Solve for x
    x = 305,616,361,767.84/624,946.80
  6. Step 6: Final answer
    x = 489,027.80

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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.