Home / 859,608.60-1,289,412.90-228,586.20

Finding the Fourth Proportional to 859,608.60, 1,289,412.90 and 228,586.20

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Solution

The fourth proportional to 859,608.60, 1,289,412.90 and 228,586.20 is: 342,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,608.60 : 1,289,412.90 = 228,586.20 : x
  2. Step 2: Convert to fraction form
    859,608.60/1,289,412.90 = 228,586.20/x
  3. Step 3: Cross multiply
    859,608.60x = 1,289,412.90 × 228,586.20
  4. Step 4: Simplify right side
    859,608.60x = 294,741,995,041.98
  5. Step 5: Solve for x
    x = 294,741,995,041.98/859,608.60
  6. Step 6: Final answer
    x = 342,879.30

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Double scale
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Similar ratio
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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.