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Finding the Fourth Proportional to 701,667.64, 968,279.34 and 395,837.56

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Solution

The fourth proportional to 701,667.64, 968,279.34 and 395,837.56 is: 546,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,667.64 : 968,279.34 = 395,837.56 : x
  2. Step 2: Convert to fraction form
    701,667.64/968,279.34 = 395,837.56/x
  3. Step 3: Cross multiply
    701,667.64x = 968,279.34 × 395,837.56
  4. Step 4: Simplify right side
    701,667.64x = 383,281,331,344.01
  5. Step 5: Solve for x
    x = 383,281,331,344.01/701,667.64
  6. Step 6: Final answer
    x = 546,243.42

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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.