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Finding the Fourth Proportional to 318,301.44, 476,811.07 and 147,282.12

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Solution

The fourth proportional to 318,301.44, 476,811.07 and 147,282.12 is: 220,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,301.44 : 476,811.07 = 147,282.12 : x
  2. Step 2: Convert to fraction form
    318,301.44/476,811.07 = 147,282.12/x
  3. Step 3: Cross multiply
    318,301.44x = 476,811.07 × 147,282.12
  4. Step 4: Simplify right side
    318,301.44x = 70,225,745,229.07
  5. Step 5: Solve for x
    x = 70,225,745,229.07/318,301.44
  6. Step 6: Final answer
    x = 220,626.54

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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.