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Finding the Fourth Proportional to 635,072.74, 876,410.31 and 348,618.94

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Solution

The fourth proportional to 635,072.74, 876,410.31 and 348,618.94 is: 481,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,072.74 : 876,410.31 = 348,618.94 : x
  2. Step 2: Convert to fraction form
    635,072.74/876,410.31 = 348,618.94/x
  3. Step 3: Cross multiply
    635,072.74x = 876,410.31 × 348,618.94
  4. Step 4: Simplify right side
    635,072.74x = 305,533,232,393.57
  5. Step 5: Solve for x
    x = 305,533,232,393.57/635,072.74
  6. Step 6: Final answer
    x = 481,099.59

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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.