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Finding the Fourth Proportional to 525,391.38, 788,197.89 and 170,377.86

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Solution

The fourth proportional to 525,391.38, 788,197.89 and 170,377.86 is: 255,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,391.38 : 788,197.89 = 170,377.86 : x
  2. Step 2: Convert to fraction form
    525,391.38/788,197.89 = 170,377.86/x
  3. Step 3: Cross multiply
    525,391.38x = 788,197.89 × 170,377.86
  4. Step 4: Simplify right side
    525,391.38x = 134,291,469,754.72
  5. Step 5: Solve for x
    x = 134,291,469,754.72/525,391.38
  6. Step 6: Final answer
    x = 255,602.73

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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.