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Finding the Fourth Proportional to 1,863,222,375.60, 2,792,459,793.60 and 990,241,959.60

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Solution

The fourth proportional to 1,863,222,375.60, 2,792,459,793.60 and 990,241,959.60 is: 1,484,101,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,222,375.60 : 2,792,459,793.60 = 990,241,959.60 : x
  2. Step 2: Convert to fraction form
    1,863,222,375.60/2,792,459,793.60 = 990,241,959.60/x
  3. Step 3: Cross multiply
    1,863,222,375.60x = 2,792,459,793.60 × 990,241,959.60
  4. Step 4: Simplify right side
    1,863,222,375.60x = 2,765,210,858,118,675,456
  5. Step 5: Solve for x
    x = 2,765,210,858,118,675,456/1,863,222,375.60
  6. Step 6: Final answer
    x = 1,484,101,358.13

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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.