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Finding the Fourth Proportional to 692,212,435.00, 955,253,206.98 and 378,946,648.97

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Solution

The fourth proportional to 692,212,435.00, 955,253,206.98 and 378,946,648.97 is: 522,946,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,212,435.00 : 955,253,206.98 = 378,946,648.97 : x
  2. Step 2: Convert to fraction form
    692,212,435.00/955,253,206.98 = 378,946,648.97/x
  3. Step 3: Cross multiply
    692,212,435.00x = 955,253,206.98 × 378,946,648.97
  4. Step 4: Simplify right side
    692,212,435.00x = 361,990,001,701,355,840
  5. Step 5: Solve for x
    x = 361,990,001,701,355,840/692,212,435.00
  6. Step 6: Final answer
    x = 522,946,401.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.