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Finding the Fourth Proportional to 635,416.63, 876,874.94 and 348,941.50

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Solution

The fourth proportional to 635,416.63, 876,874.94 and 348,941.50 is: 481,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,416.63 : 876,874.94 = 348,941.50 : x
  2. Step 2: Convert to fraction form
    635,416.63/876,874.94 = 348,941.50/x
  3. Step 3: Cross multiply
    635,416.63x = 876,874.94 × 348,941.50
  4. Step 4: Simplify right side
    635,416.63x = 305,978,056,876.01
  5. Step 5: Solve for x
    x = 305,978,056,876.01/635,416.63
  6. Step 6: Final answer
    x = 481,539.26

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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.