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Finding the Fourth Proportional to 604,308,647.80, 906,910,869.30 and 443,065,511.80

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Solution

The fourth proportional to 604,308,647.80, 906,910,869.30 and 443,065,511.80 is: 664,926,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,308,647.80 : 906,910,869.30 = 443,065,511.80 : x
  2. Step 2: Convert to fraction form
    604,308,647.80/906,910,869.30 = 443,065,511.80/x
  3. Step 3: Cross multiply
    604,308,647.80x = 906,910,869.30 × 443,065,511.80
  4. Step 4: Simplify right side
    604,308,647.80x = 401,820,928,463,387,392
  5. Step 5: Solve for x
    x = 401,820,928,463,387,392/604,308,647.80
  6. Step 6: Final answer
    x = 664,926,656.15

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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.