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Finding the Fourth Proportional to 604,308,676.80, 906,910,912.80 and 443,065,540.80

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Solution

The fourth proportional to 604,308,676.80, 906,910,912.80 and 443,065,540.80 is: 664,926,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,308,676.80 : 906,910,912.80 = 443,065,540.80 : x
  2. Step 2: Convert to fraction form
    604,308,676.80/906,910,912.80 = 443,065,540.80/x
  3. Step 3: Cross multiply
    604,308,676.80x = 906,910,912.80 × 443,065,540.80
  4. Step 4: Simplify right side
    604,308,676.80x = 401,820,974,037,153,600
  5. Step 5: Solve for x
    x = 401,820,974,037,153,600/604,308,676.80
  6. Step 6: Final answer
    x = 664,926,699.65

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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.