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Finding the Fourth Proportional to 611,046.06, 843,293.88 and 339,109.02

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Solution

The fourth proportional to 611,046.06, 843,293.88 and 339,109.02 is: 467,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,046.06 : 843,293.88 = 339,109.02 : x
  2. Step 2: Convert to fraction form
    611,046.06/843,293.88 = 339,109.02/x
  3. Step 3: Cross multiply
    611,046.06x = 843,293.88 × 339,109.02
  4. Step 4: Simplify right side
    611,046.06x = 285,968,561,218.80
  5. Step 5: Solve for x
    x = 285,968,561,218.80/611,046.06
  6. Step 6: Final answer
    x = 467,998.37

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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.