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Finding the Fourth Proportional to 655,861.41, 984,352.88 and 256,782.44

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Solution

The fourth proportional to 655,861.41, 984,352.88 and 256,782.44 is: 385,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,861.41 : 984,352.88 = 256,782.44 : x
  2. Step 2: Convert to fraction form
    655,861.41/984,352.88 = 256,782.44/x
  3. Step 3: Cross multiply
    655,861.41x = 984,352.88 × 256,782.44
  4. Step 4: Simplify right side
    655,861.41x = 252,764,528,141.75
  5. Step 5: Solve for x
    x = 252,764,528,141.75/655,861.41
  6. Step 6: Final answer
    x = 385,393.20

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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.