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Finding the Fourth Proportional to 411,861.75, 618,229.34 and 364,782.47

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Solution

The fourth proportional to 411,861.75, 618,229.34 and 364,782.47 is: 547,560.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,861.75 : 618,229.34 = 364,782.47 : x
  2. Step 2: Convert to fraction form
    411,861.75/618,229.34 = 364,782.47/x
  3. Step 3: Cross multiply
    411,861.75x = 618,229.34 × 364,782.47
  4. Step 4: Simplify right side
    411,861.75x = 225,519,220,756.61
  5. Step 5: Solve for x
    x = 225,519,220,756.61/411,861.75
  6. Step 6: Final answer
    x = 547,560.49

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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.