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Finding the Fourth Proportional to 504,511.21, 756,968.43 and 205,015.24

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Solution

The fourth proportional to 504,511.21, 756,968.43 and 205,015.24 is: 307,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,511.21 : 756,968.43 = 205,015.24 : x
  2. Step 2: Convert to fraction form
    504,511.21/756,968.43 = 205,015.24/x
  3. Step 3: Cross multiply
    504,511.21x = 756,968.43 × 205,015.24
  4. Step 4: Simplify right side
    504,511.21x = 155,190,060,564.03
  5. Step 5: Solve for x
    x = 155,190,060,564.03/504,511.21
  6. Step 6: Final answer
    x = 307,604.78

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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.