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Finding the Fourth Proportional to 635,257.71, 876,657.15 and 348,796.17

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Solution

The fourth proportional to 635,257.71, 876,657.15 and 348,796.17 is: 481,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,257.71 : 876,657.15 = 348,796.17 : x
  2. Step 2: Convert to fraction form
    635,257.71/876,657.15 = 348,796.17/x
  3. Step 3: Cross multiply
    635,257.71x = 876,657.15 × 348,796.17
  4. Step 4: Simplify right side
    635,257.71x = 305,774,656,323.12
  5. Step 5: Solve for x
    x = 305,774,656,323.12/635,257.71
  6. Step 6: Final answer
    x = 481,339.54

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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.