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Finding the Fourth Proportional to 624,646.20, 936,969.30 and 269,412.60

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Solution

The fourth proportional to 624,646.20, 936,969.30 and 269,412.60 is: 404,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,646.20 : 936,969.30 = 269,412.60 : x
  2. Step 2: Convert to fraction form
    624,646.20/936,969.30 = 269,412.60/x
  3. Step 3: Cross multiply
    624,646.20x = 936,969.30 × 269,412.60
  4. Step 4: Simplify right side
    624,646.20x = 252,431,335,233.18
  5. Step 5: Solve for x
    x = 252,431,335,233.18/624,646.20
  6. Step 6: Final answer
    x = 404,118.90

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.