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Finding the Fourth Proportional to 615,481,144.86, 923,394,315.33 and 247,274,656.14

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Solution

The fourth proportional to 615,481,144.86, 923,394,315.33 and 247,274,656.14 is: 370,981,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,481,144.86 : 923,394,315.33 = 247,274,656.14 : x
  2. Step 2: Convert to fraction form
    615,481,144.86/923,394,315.33 = 247,274,656.14/x
  3. Step 3: Cross multiply
    615,481,144.86x = 923,394,315.33 × 247,274,656.14
  4. Step 4: Simplify right side
    615,481,144.86x = 228,332,011,804,856,480
  5. Step 5: Solve for x
    x = 228,332,011,804,856,480/615,481,144.86
  6. Step 6: Final answer
    x = 370,981,326.90

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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.