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Finding the Fourth Proportional to 625,882,076.58, 863,741,556.47 and 343,636,414.07

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Solution

The fourth proportional to 625,882,076.58, 863,741,556.47 and 343,636,414.07 is: 474,231,588.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,882,076.58 : 863,741,556.47 = 343,636,414.07 : x
  2. Step 2: Convert to fraction form
    625,882,076.58/863,741,556.47 = 343,636,414.07/x
  3. Step 3: Cross multiply
    625,882,076.58x = 863,741,556.47 × 343,636,414.07
  4. Step 4: Simplify right side
    625,882,076.58x = 296,813,051,145,131,584
  5. Step 5: Solve for x
    x = 296,813,051,145,131,584/625,882,076.58
  6. Step 6: Final answer
    x = 474,231,588.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.