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Finding the Fourth Proportional to 353,636.52, 530,486.22 and 100,912.20

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Solution

The fourth proportional to 353,636.52, 530,486.22 and 100,912.20 is: 151,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,636.52 : 530,486.22 = 100,912.20 : x
  2. Step 2: Convert to fraction form
    353,636.52/530,486.22 = 100,912.20/x
  3. Step 3: Cross multiply
    353,636.52x = 530,486.22 × 100,912.20
  4. Step 4: Simplify right side
    353,636.52x = 53,532,531,529.88
  5. Step 5: Solve for x
    x = 53,532,531,529.88/353,636.52
  6. Step 6: Final answer
    x = 151,377.27

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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.