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Finding the Fourth Proportional to 635,081.28, 876,408.84 and 348,606.24

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Solution

The fourth proportional to 635,081.28, 876,408.84 and 348,606.24 is: 481,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,081.28 : 876,408.84 = 348,606.24 : x
  2. Step 2: Convert to fraction form
    635,081.28/876,408.84 = 348,606.24/x
  3. Step 3: Cross multiply
    635,081.28x = 876,408.84 × 348,606.24
  4. Step 4: Simplify right side
    635,081.28x = 305,521,590,415.16
  5. Step 5: Solve for x
    x = 305,521,590,415.16/635,081.28
  6. Step 6: Final answer
    x = 481,074.79

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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.