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Finding the Fourth Proportional to 619,892,166.40, 929,838,249.60 and 347,794,374.40

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Solution

The fourth proportional to 619,892,166.40, 929,838,249.60 and 347,794,374.40 is: 521,691,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,892,166.40 : 929,838,249.60 = 347,794,374.40 : x
  2. Step 2: Convert to fraction form
    619,892,166.40/929,838,249.60 = 347,794,374.40/x
  3. Step 3: Cross multiply
    619,892,166.40x = 929,838,249.60 × 347,794,374.40
  4. Step 4: Simplify right side
    619,892,166.40x = 323,392,512,312,823,040
  5. Step 5: Solve for x
    x = 323,392,512,312,823,040/619,892,166.40
  6. Step 6: Final answer
    x = 521,691,561.60

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Similar ratio
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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.