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Finding the Fourth Proportional to 619,584.64, 854,991.36 and 343,928.32

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Solution

The fourth proportional to 619,584.64, 854,991.36 and 343,928.32 is: 474,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,584.64 : 854,991.36 = 343,928.32 : x
  2. Step 2: Convert to fraction form
    619,584.64/854,991.36 = 343,928.32/x
  3. Step 3: Cross multiply
    619,584.64x = 854,991.36 × 343,928.32
  4. Step 4: Simplify right side
    619,584.64x = 294,055,742,059.32
  5. Step 5: Solve for x
    x = 294,055,742,059.32/619,584.64
  6. Step 6: Final answer
    x = 474,601.41

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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.