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Finding the Fourth Proportional to 640,615.96, 961,123.84 and 191,354.56

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Solution

The fourth proportional to 640,615.96, 961,123.84 and 191,354.56 is: 287,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,615.96 : 961,123.84 = 191,354.56 : x
  2. Step 2: Convert to fraction form
    640,615.96/961,123.84 = 191,354.56/x
  3. Step 3: Cross multiply
    640,615.96x = 961,123.84 × 191,354.56
  4. Step 4: Simplify right side
    640,615.96x = 183,915,427,703.88
  5. Step 5: Solve for x
    x = 183,915,427,703.88/640,615.96
  6. Step 6: Final answer
    x = 287,091.55

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