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Finding the Fourth Proportional to 3,321,992.80, 4,653,939.20 and 3,321,992.80

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Solution

The fourth proportional to 3,321,992.80, 4,653,939.20 and 3,321,992.80 is: 4,653,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,992.80 : 4,653,939.20 = 3,321,992.80 : x
  2. Step 2: Convert to fraction form
    3,321,992.80/4,653,939.20 = 3,321,992.80/x
  3. Step 3: Cross multiply
    3,321,992.80x = 4,653,939.20 × 3,321,992.80
  4. Step 4: Simplify right side
    3,321,992.80x = 15,460,352,514,037.76
  5. Step 5: Solve for x
    x = 15,460,352,514,037.76/3,321,992.80
  6. Step 6: Final answer
    x = 4,653,939.20

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.