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Finding the Fourth Proportional to 755,770,892.80, 1,133,656,339.20 and 626,630,729.80

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Solution

The fourth proportional to 755,770,892.80, 1,133,656,339.20 and 626,630,729.80 is: 939,946,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,770,892.80 : 1,133,656,339.20 = 626,630,729.80 : x
  2. Step 2: Convert to fraction form
    755,770,892.80/1,133,656,339.20 = 626,630,729.80/x
  3. Step 3: Cross multiply
    755,770,892.80x = 1,133,656,339.20 × 626,630,729.80
  4. Step 4: Simplify right side
    755,770,892.80x = 710,383,899,175,292,288
  5. Step 5: Solve for x
    x = 710,383,899,175,292,288/755,770,892.80
  6. Step 6: Final answer
    x = 939,946,094.70

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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.