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Finding the Fourth Proportional to 512,222.58, 768,136.95 and 353,971.26

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Solution

The fourth proportional to 512,222.58, 768,136.95 and 353,971.26 is: 530,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,222.58 : 768,136.95 = 353,971.26 : x
  2. Step 2: Convert to fraction form
    512,222.58/768,136.95 = 353,971.26/x
  3. Step 3: Cross multiply
    512,222.58x = 768,136.95 × 353,971.26
  4. Step 4: Simplify right side
    512,222.58x = 271,898,404,044.06
  5. Step 5: Solve for x
    x = 271,898,404,044.06/512,222.58
  6. Step 6: Final answer
    x = 530,820.81

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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.