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Finding the Fourth Proportional to 635,273.72, 876,679.42 and 348,812.36

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Solution

The fourth proportional to 635,273.72, 876,679.42 and 348,812.36 is: 481,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,273.72 : 876,679.42 = 348,812.36 : x
  2. Step 2: Convert to fraction form
    635,273.72/876,679.42 = 348,812.36/x
  3. Step 3: Cross multiply
    635,273.72x = 876,679.42 × 348,812.36
  4. Step 4: Simplify right side
    635,273.72x = 305,796,617,453.63
  5. Step 5: Solve for x
    x = 305,796,617,453.63/635,273.72
  6. Step 6: Final answer
    x = 481,361.98

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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.