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Finding the Fourth Proportional to 545,500.55, 818,379.57 and 171,523.55

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Solution

The fourth proportional to 545,500.55, 818,379.57 and 171,523.55 is: 257,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,500.55 : 818,379.57 = 171,523.55 : x
  2. Step 2: Convert to fraction form
    545,500.55/818,379.57 = 171,523.55/x
  3. Step 3: Cross multiply
    545,500.55x = 818,379.57 × 171,523.55
  4. Step 4: Simplify right side
    545,500.55x = 140,371,369,093.87
  5. Step 5: Solve for x
    x = 140,371,369,093.87/545,500.55
  6. Step 6: Final answer
    x = 257,325.81

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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.