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Finding the Fourth Proportional to 849,649,583.70, 1,274,474,375.55 and 620,067,071.70

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Solution

The fourth proportional to 849,649,583.70, 1,274,474,375.55 and 620,067,071.70 is: 930,100,607.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,649,583.70 : 1,274,474,375.55 = 620,067,071.70 : x
  2. Step 2: Convert to fraction form
    849,649,583.70/1,274,474,375.55 = 620,067,071.70/x
  3. Step 3: Cross multiply
    849,649,583.70x = 1,274,474,375.55 × 620,067,071.70
  4. Step 4: Simplify right side
    849,649,583.70x = 790,259,594,003,974,656
  5. Step 5: Solve for x
    x = 790,259,594,003,974,656/849,649,583.70
  6. Step 6: Final answer
    x = 930,100,607.55

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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.