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Finding the Fourth Proportional to 379,084,926, 568,627,389 and 91,870,590

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Solution

The fourth proportional to 379,084,926, 568,627,389 and 91,870,590 is: 137,805,885

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,084,926 : 568,627,389 = 91,870,590 : x
  2. Step 2: Convert to fraction form
    379,084,926/568,627,389 = 91,870,590/x
  3. Step 3: Cross multiply
    379,084,926x = 568,627,389 × 91,870,590
  4. Step 4: Simplify right side
    379,084,926x = 52,240,133,717,589,512
  5. Step 5: Solve for x
    x = 52,240,133,717,589,512/379,084,926
  6. Step 6: Final answer
    x = 137,805,885

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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.