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Finding the Fourth Proportional to 5,327,326.80, 7,981,804.80 and 2,481,602.40

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Solution

The fourth proportional to 5,327,326.80, 7,981,804.80 and 2,481,602.40 is: 3,718,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327,326.80 : 7,981,804.80 = 2,481,602.40 : x
  2. Step 2: Convert to fraction form
    5,327,326.80/7,981,804.80 = 2,481,602.40/x
  3. Step 3: Cross multiply
    5,327,326.80x = 7,981,804.80 × 2,481,602.40
  4. Step 4: Simplify right side
    5,327,326.80x = 19,807,665,948,011.52
  5. Step 5: Solve for x
    x = 19,807,665,948,011.52/5,327,326.80
  6. Step 6: Final answer
    x = 3,718,124.81

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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.