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Finding the Fourth Proportional to 619,946,579.89, 855,526,326.44 and 341,488,103.43

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Solution

The fourth proportional to 619,946,579.89, 855,526,326.44 and 341,488,103.43 is: 471,253,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,946,579.89 : 855,526,326.44 = 341,488,103.43 : x
  2. Step 2: Convert to fraction form
    619,946,579.89/855,526,326.44 = 341,488,103.43/x
  3. Step 3: Cross multiply
    619,946,579.89x = 855,526,326.44 × 341,488,103.43
  4. Step 4: Simplify right side
    619,946,579.89x = 292,152,062,650,430,720
  5. Step 5: Solve for x
    x = 292,152,062,650,430,720/619,946,579.89
  6. Step 6: Final answer
    x = 471,253,608.18

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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.