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Finding the Fourth Proportional to 664,308,053.70, 996,462,080.55 and 626,684,655.30

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Solution

The fourth proportional to 664,308,053.70, 996,462,080.55 and 626,684,655.30 is: 940,026,982.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,308,053.70 : 996,462,080.55 = 626,684,655.30 : x
  2. Step 2: Convert to fraction form
    664,308,053.70/996,462,080.55 = 626,684,655.30/x
  3. Step 3: Cross multiply
    664,308,053.70x = 996,462,080.55 × 626,684,655.30
  4. Step 4: Simplify right side
    664,308,053.70x = 624,467,495,468,997,504
  5. Step 5: Solve for x
    x = 624,467,495,468,997,504/664,308,053.70
  6. Step 6: Final answer
    x = 940,026,982.95

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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.