Home / 1,257,630.20-1,886,445.30-416,072.60

Finding the Fourth Proportional to 1,257,630.20, 1,886,445.30 and 416,072.60

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Solution

The fourth proportional to 1,257,630.20, 1,886,445.30 and 416,072.60 is: 624,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,630.20 : 1,886,445.30 = 416,072.60 : x
  2. Step 2: Convert to fraction form
    1,257,630.20/1,886,445.30 = 416,072.60/x
  3. Step 3: Cross multiply
    1,257,630.20x = 1,886,445.30 × 416,072.60
  4. Step 4: Simplify right side
    1,257,630.20x = 784,898,200,728.78
  5. Step 5: Solve for x
    x = 784,898,200,728.78/1,257,630.20
  6. Step 6: Final answer
    x = 624,108.90

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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.