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Finding the Fourth Proportional to 348,404,892.80, 480,794,936.64 and 191,768,650.88

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Solution

The fourth proportional to 348,404,892.80, 480,794,936.64 and 191,768,650.88 is: 264,638,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,404,892.80 : 480,794,936.64 = 191,768,650.88 : x
  2. Step 2: Convert to fraction form
    348,404,892.80/480,794,936.64 = 191,768,650.88/x
  3. Step 3: Cross multiply
    348,404,892.80x = 480,794,936.64 × 191,768,650.88
  4. Step 4: Simplify right side
    348,404,892.80x = 92,201,396,349,387,872
  5. Step 5: Solve for x
    x = 92,201,396,349,387,872/348,404,892.80
  6. Step 6: Final answer
    x = 264,638,638.13

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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.