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Finding the Fourth Proportional to 351,389.88, 484,918.31 and 190,245.04

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Solution

The fourth proportional to 351,389.88, 484,918.31 and 190,245.04 is: 262,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,389.88 : 484,918.31 = 190,245.04 : x
  2. Step 2: Convert to fraction form
    351,389.88/484,918.31 = 190,245.04/x
  3. Step 3: Cross multiply
    351,389.88x = 484,918.31 × 190,245.04
  4. Step 4: Simplify right side
    351,389.88x = 92,253,302,546.00
  5. Step 5: Solve for x
    x = 92,253,302,546.00/351,389.88
  6. Step 6: Final answer
    x = 262,538.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.