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Finding the Fourth Proportional to 436,903.20, 655,376.40 and 226,951.20

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Solution

The fourth proportional to 436,903.20, 655,376.40 and 226,951.20 is: 340,438.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,903.20 : 655,376.40 = 226,951.20 : x
  2. Step 2: Convert to fraction form
    436,903.20/655,376.40 = 226,951.20/x
  3. Step 3: Cross multiply
    436,903.20x = 655,376.40 × 226,951.20
  4. Step 4: Simplify right side
    436,903.20x = 148,738,460,431.68
  5. Step 5: Solve for x
    x = 148,738,460,431.68/436,903.20
  6. Step 6: Final answer
    x = 340,438.02

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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.