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Finding the Fourth Proportional to 419,771,653.08, 579,286,893.45 and 231,599,937.48

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Solution

The fourth proportional to 419,771,653.08, 579,286,893.45 and 231,599,937.48 is: 319,609,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,771,653.08 : 579,286,893.45 = 231,599,937.48 : x
  2. Step 2: Convert to fraction form
    419,771,653.08/579,286,893.45 = 231,599,937.48/x
  3. Step 3: Cross multiply
    419,771,653.08x = 579,286,893.45 × 231,599,937.48
  4. Step 4: Simplify right side
    419,771,653.08x = 134,162,808,306,003,424
  5. Step 5: Solve for x
    x = 134,162,808,306,003,424/419,771,653.08
  6. Step 6: Final answer
    x = 319,609,023.91

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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.