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Finding the Fourth Proportional to 655,858.28, 984,348.18 and 256,779.30

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Solution

The fourth proportional to 655,858.28, 984,348.18 and 256,779.30 is: 385,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,858.28 : 984,348.18 = 256,779.30 : x
  2. Step 2: Convert to fraction form
    655,858.28/984,348.18 = 256,779.30/x
  3. Step 3: Cross multiply
    655,858.28x = 984,348.18 × 256,779.30
  4. Step 4: Simplify right side
    655,858.28x = 252,760,236,616.67
  5. Step 5: Solve for x
    x = 252,760,236,616.67/655,858.28
  6. Step 6: Final answer
    x = 385,388.50

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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.