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Finding the Fourth Proportional to 355,695,491, 490,859,777.58 and 192,904,067

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Solution

The fourth proportional to 355,695,491, 490,859,777.58 and 192,904,067 is: 266,207,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,695,491 : 490,859,777.58 = 192,904,067 : x
  2. Step 2: Convert to fraction form
    355,695,491/490,859,777.58 = 192,904,067/x
  3. Step 3: Cross multiply
    355,695,491x = 490,859,777.58 × 192,904,067
  4. Step 4: Simplify right side
    355,695,491x = 94,688,847,421,897,408
  5. Step 5: Solve for x
    x = 94,688,847,421,897,408/355,695,491
  6. Step 6: Final answer
    x = 266,207,612.46

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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.