Home / 859,633.60-1,289,450.40-228,611.20

Finding the Fourth Proportional to 859,633.60, 1,289,450.40 and 228,611.20

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Solution

The fourth proportional to 859,633.60, 1,289,450.40 and 228,611.20 is: 342,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,633.60 : 1,289,450.40 = 228,611.20 : x
  2. Step 2: Convert to fraction form
    859,633.60/1,289,450.40 = 228,611.20/x
  3. Step 3: Cross multiply
    859,633.60x = 1,289,450.40 × 228,611.20
  4. Step 4: Simplify right side
    859,633.60x = 294,782,803,284.48
  5. Step 5: Solve for x
    x = 294,782,803,284.48/859,633.60
  6. Step 6: Final answer
    x = 342,916.80

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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.