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Finding the Fourth Proportional to 362,905.60, 543,321.60 and 325,580.80

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Solution

The fourth proportional to 362,905.60, 543,321.60 and 325,580.80 is: 487,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,905.60 : 543,321.60 = 325,580.80 : x
  2. Step 2: Convert to fraction form
    362,905.60/543,321.60 = 325,580.80/x
  3. Step 3: Cross multiply
    362,905.60x = 543,321.60 × 325,580.80
  4. Step 4: Simplify right side
    362,905.60x = 176,895,081,185.28
  5. Step 5: Solve for x
    x = 176,895,081,185.28/362,905.60
  6. Step 6: Final answer
    x = 487,441.03

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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.