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Finding the Fourth Proportional to 544,081.20, 816,121.80 and 488,968.80

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Solution

The fourth proportional to 544,081.20, 816,121.80 and 488,968.80 is: 733,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,081.20 : 816,121.80 = 488,968.80 : x
  2. Step 2: Convert to fraction form
    544,081.20/816,121.80 = 488,968.80/x
  3. Step 3: Cross multiply
    544,081.20x = 816,121.80 × 488,968.80
  4. Step 4: Simplify right side
    544,081.20x = 399,058,097,199.84
  5. Step 5: Solve for x
    x = 399,058,097,199.84/544,081.20
  6. Step 6: Final answer
    x = 733,453.20

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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.