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Finding the Fourth Proportional to 891,682,542.86, 1,336,993,952.04 and 339,025,425.80

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Solution

The fourth proportional to 891,682,542.86, 1,336,993,952.04 and 339,025,425.80 is: 508,336,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,682,542.86 : 1,336,993,952.04 = 339,025,425.80 : x
  2. Step 2: Convert to fraction form
    891,682,542.86/1,336,993,952.04 = 339,025,425.80/x
  3. Step 3: Cross multiply
    891,682,542.86x = 1,336,993,952.04 × 339,025,425.80
  4. Step 4: Simplify right side
    891,682,542.86x = 453,274,943,875,700,800
  5. Step 5: Solve for x
    x = 453,274,943,875,700,800/891,682,542.86
  6. Step 6: Final answer
    x = 508,336,680.48

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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.