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Finding the Fourth Proportional to 351,985,599.20, 493,800,205.60 and 351,985,599.20

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Solution

The fourth proportional to 351,985,599.20, 493,800,205.60 and 351,985,599.20 is: 493,800,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,985,599.20 : 493,800,205.60 = 351,985,599.20 : x
  2. Step 2: Convert to fraction form
    351,985,599.20/493,800,205.60 = 351,985,599.20/x
  3. Step 3: Cross multiply
    351,985,599.20x = 493,800,205.60 × 351,985,599.20
  4. Step 4: Simplify right side
    351,985,599.20x = 173,810,561,253,199,200
  5. Step 5: Solve for x
    x = 173,810,561,253,199,200/351,985,599.20
  6. Step 6: Final answer
    x = 493,800,205.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.