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Finding the Fourth Proportional to 512,044.16, 768,190.89 and 170,486.69

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Solution

The fourth proportional to 512,044.16, 768,190.89 and 170,486.69 is: 255,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,044.16 : 768,190.89 = 170,486.69 : x
  2. Step 2: Convert to fraction form
    512,044.16/768,190.89 = 170,486.69/x
  3. Step 3: Cross multiply
    512,044.16x = 768,190.89 × 170,486.69
  4. Step 4: Simplify right side
    512,044.16x = 130,966,322,124.25
  5. Step 5: Solve for x
    x = 130,966,322,124.25/512,044.16
  6. Step 6: Final answer
    x = 255,771.54

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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.