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Finding the Fourth Proportional to 618,453.36, 926,805.24 and 263,109.60

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Solution

The fourth proportional to 618,453.36, 926,805.24 and 263,109.60 is: 394,292.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,453.36 : 926,805.24 = 263,109.60 : x
  2. Step 2: Convert to fraction form
    618,453.36/926,805.24 = 263,109.60/x
  3. Step 3: Cross multiply
    618,453.36x = 926,805.24 × 263,109.60
  4. Step 4: Simplify right side
    618,453.36x = 243,851,355,974.30
  5. Step 5: Solve for x
    x = 243,851,355,974.30/618,453.36
  6. Step 6: Final answer
    x = 394,292.23

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1.5x scale

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.