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Finding the Fourth Proportional to 822,651,990, 1,135,261,902.08 and 446,308,558.32

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Solution

The fourth proportional to 822,651,990, 1,135,261,902.08 and 446,308,558.32 is: 615,906,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,651,990 : 1,135,261,902.08 = 446,308,558.32 : x
  2. Step 2: Convert to fraction form
    822,651,990/1,135,261,902.08 = 446,308,558.32/x
  3. Step 3: Cross multiply
    822,651,990x = 1,135,261,902.08 × 446,308,558.32
  4. Step 4: Simplify right side
    822,651,990x = 506,677,102,832,945,792
  5. Step 5: Solve for x
    x = 506,677,102,832,945,792/822,651,990
  6. Step 6: Final answer
    x = 615,906,980.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.