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Finding the Fourth Proportional to 516,861.44, 774,500.76 and 347,755.32

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Solution

The fourth proportional to 516,861.44, 774,500.76 and 347,755.32 is: 521,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,861.44 : 774,500.76 = 347,755.32 : x
  2. Step 2: Convert to fraction form
    516,861.44/774,500.76 = 347,755.32/x
  3. Step 3: Cross multiply
    516,861.44x = 774,500.76 × 347,755.32
  4. Step 4: Simplify right side
    516,861.44x = 269,336,759,634.04
  5. Step 5: Solve for x
    x = 269,336,759,634.04/516,861.44
  6. Step 6: Final answer
    x = 521,100.51

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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.