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Finding the Fourth Proportional to 522,109.26, 782,780.85 and 166,918.86

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Solution

The fourth proportional to 522,109.26, 782,780.85 and 166,918.86 is: 250,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,109.26 : 782,780.85 = 166,918.86 : x
  2. Step 2: Convert to fraction form
    522,109.26/782,780.85 = 166,918.86/x
  3. Step 3: Cross multiply
    522,109.26x = 782,780.85 × 166,918.86
  4. Step 4: Simplify right side
    522,109.26x = 130,660,887,111.83
  5. Step 5: Solve for x
    x = 130,660,887,111.83/522,109.26
  6. Step 6: Final answer
    x = 250,255.83

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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.