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Finding the Fourth Proportional to 3,266,298.98, 4,899,131.69 and 991,843.07

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Solution

The fourth proportional to 3,266,298.98, 4,899,131.69 and 991,843.07 is: 1,487,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266,298.98 : 4,899,131.69 = 991,843.07 : x
  2. Step 2: Convert to fraction form
    3,266,298.98/4,899,131.69 = 991,843.07/x
  3. Step 3: Cross multiply
    3,266,298.98x = 4,899,131.69 × 991,843.07
  4. Step 4: Simplify right side
    3,266,298.98x = 4,859,169,786,289.01
  5. Step 5: Solve for x
    x = 4,859,169,786,289.01/3,266,298.98
  6. Step 6: Final answer
    x = 1,487,668.40

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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.