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Finding the Fourth Proportional to 666,554.00, 919,843.16 and 360,629.44

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Solution

The fourth proportional to 666,554.00, 919,843.16 and 360,629.44 is: 497,667.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,554.00 : 919,843.16 = 360,629.44 : x
  2. Step 2: Convert to fraction form
    666,554.00/919,843.16 = 360,629.44/x
  3. Step 3: Cross multiply
    666,554.00x = 919,843.16 × 360,629.44
  4. Step 4: Simplify right side
    666,554.00x = 331,722,519,575.88
  5. Step 5: Solve for x
    x = 331,722,519,575.88/666,554.00
  6. Step 6: Final answer
    x = 497,667.89

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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.