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Finding the Fourth Proportional to 6,803,865.80, 10,205,798.70 and 6,284,234.60

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Solution

The fourth proportional to 6,803,865.80, 10,205,798.70 and 6,284,234.60 is: 9,426,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,803,865.80 : 10,205,798.70 = 6,284,234.60 : x
  2. Step 2: Convert to fraction form
    6,803,865.80/10,205,798.70 = 6,284,234.60/x
  3. Step 3: Cross multiply
    6,803,865.80x = 10,205,798.70 × 6,284,234.60
  4. Step 4: Simplify right side
    6,803,865.80x = 64,135,633,311,175.01
  5. Step 5: Solve for x
    x = 64,135,633,311,175.01/6,803,865.80
  6. Step 6: Final answer
    x = 9,426,351.90

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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.