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Finding the Fourth Proportional to 755,770,896.80, 1,133,656,345.20 and 626,630,733.80

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Solution

The fourth proportional to 755,770,896.80, 1,133,656,345.20 and 626,630,733.80 is: 939,946,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,770,896.80 : 1,133,656,345.20 = 626,630,733.80 : x
  2. Step 2: Convert to fraction form
    755,770,896.80/1,133,656,345.20 = 626,630,733.80/x
  3. Step 3: Cross multiply
    755,770,896.80x = 1,133,656,345.20 × 626,630,733.80
  4. Step 4: Simplify right side
    755,770,896.80x = 710,383,907,469,702,144
  5. Step 5: Solve for x
    x = 710,383,907,469,702,144/755,770,896.80
  6. Step 6: Final answer
    x = 939,946,100.70

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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.