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Finding the Fourth Proportional to 798,511,153.80, 1,197,766,730.70 and 681,609,880.20

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Solution

The fourth proportional to 798,511,153.80, 1,197,766,730.70 and 681,609,880.20 is: 1,022,414,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,511,153.80 : 1,197,766,730.70 = 681,609,880.20 : x
  2. Step 2: Convert to fraction form
    798,511,153.80/1,197,766,730.70 = 681,609,880.20/x
  3. Step 3: Cross multiply
    798,511,153.80x = 1,197,766,730.70 × 681,609,880.20
  4. Step 4: Simplify right side
    798,511,153.80x = 816,409,637,819,972,736
  5. Step 5: Solve for x
    x = 816,409,637,819,972,736/798,511,153.80
  6. Step 6: Final answer
    x = 1,022,414,820.30

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Double scale
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1.5x scale

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.