Home / 656,500.20-984,059.10-256,986.60

Finding the Fourth Proportional to 656,500.20, 984,059.10 and 256,986.60

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Solution

The fourth proportional to 656,500.20, 984,059.10 and 256,986.60 is: 385,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,500.20 : 984,059.10 = 256,986.60 : x
  2. Step 2: Convert to fraction form
    656,500.20/984,059.10 = 256,986.60/x
  3. Step 3: Cross multiply
    656,500.20x = 984,059.10 × 256,986.60
  4. Step 4: Simplify right side
    656,500.20x = 252,890,002,308.06
  5. Step 5: Solve for x
    x = 252,890,002,308.06/656,500.20
  6. Step 6: Final answer
    x = 385,209.33

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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.