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Finding the Fourth Proportional to 469,172.99, 647,441.38 and 254,308.44

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Solution

The fourth proportional to 469,172.99, 647,441.38 and 254,308.44 is: 350,936.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,172.99 : 647,441.38 = 254,308.44 : x
  2. Step 2: Convert to fraction form
    469,172.99/647,441.38 = 254,308.44/x
  3. Step 3: Cross multiply
    469,172.99x = 647,441.38 × 254,308.44
  4. Step 4: Simplify right side
    469,172.99x = 164,649,802,830.50
  5. Step 5: Solve for x
    x = 164,649,802,830.50/469,172.99
  6. Step 6: Final answer
    x = 350,936.24

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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.