Home / 656,917.40-985,405.26-257,522.60

Finding the Fourth Proportional to 656,917.40, 985,405.26 and 257,522.60

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Solution

The fourth proportional to 656,917.40, 985,405.26 and 257,522.60 is: 386,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,917.40 : 985,405.26 = 257,522.60 : x
  2. Step 2: Convert to fraction form
    656,917.40/985,405.26 = 257,522.60/x
  3. Step 3: Cross multiply
    656,917.40x = 985,405.26 × 257,522.60
  4. Step 4: Simplify right side
    656,917.40x = 253,764,124,608.88
  5. Step 5: Solve for x
    x = 253,764,124,608.88/656,917.40
  6. Step 6: Final answer
    x = 386,295.33

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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.