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Finding the Fourth Proportional to 635,303.28, 876,712.44 and 348,820.84

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Solution

The fourth proportional to 635,303.28, 876,712.44 and 348,820.84 is: 481,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,303.28 : 876,712.44 = 348,820.84 : x
  2. Step 2: Convert to fraction form
    635,303.28/876,712.44 = 348,820.84/x
  3. Step 3: Cross multiply
    635,303.28x = 876,712.44 × 348,820.84
  4. Step 4: Simplify right side
    635,303.28x = 305,815,569,759.25
  5. Step 5: Solve for x
    x = 305,815,569,759.25/635,303.28
  6. Step 6: Final answer
    x = 481,369.42

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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.