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Finding the Fourth Proportional to 322,608.40, 483,912.60 and 216,854.80

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Solution

The fourth proportional to 322,608.40, 483,912.60 and 216,854.80 is: 325,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,608.40 : 483,912.60 = 216,854.80 : x
  2. Step 2: Convert to fraction form
    322,608.40/483,912.60 = 216,854.80/x
  3. Step 3: Cross multiply
    322,608.40x = 483,912.60 × 216,854.80
  4. Step 4: Simplify right side
    322,608.40x = 104,938,770,090.48
  5. Step 5: Solve for x
    x = 104,938,770,090.48/322,608.40
  6. Step 6: Final answer
    x = 325,282.20

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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.