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Finding the Fourth Proportional to 461,710.89, 635,739.89 and 393,575.13

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Solution

The fourth proportional to 461,710.89, 635,739.89 and 393,575.13 is: 541,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,710.89 : 635,739.89 = 393,575.13 : x
  2. Step 2: Convert to fraction form
    461,710.89/635,739.89 = 393,575.13/x
  3. Step 3: Cross multiply
    461,710.89x = 635,739.89 × 393,575.13
  4. Step 4: Simplify right side
    461,710.89x = 250,211,407,885.06
  5. Step 5: Solve for x
    x = 250,211,407,885.06/461,710.89
  6. Step 6: Final answer
    x = 541,922.26

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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.