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Finding the Fourth Proportional to 322,615.20, 483,922.80 and 223,082.40

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Solution

The fourth proportional to 322,615.20, 483,922.80 and 223,082.40 is: 334,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,615.20 : 483,922.80 = 223,082.40 : x
  2. Step 2: Convert to fraction form
    322,615.20/483,922.80 = 223,082.40/x
  3. Step 3: Cross multiply
    322,615.20x = 483,922.80 × 223,082.40
  4. Step 4: Simplify right side
    322,615.20x = 107,954,659,638.72
  5. Step 5: Solve for x
    x = 107,954,659,638.72/322,615.20
  6. Step 6: Final answer
    x = 334,623.60

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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.