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Finding the Fourth Proportional to 663,551,998.80, 995,327,998.20 and 593,679,973.20

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Solution

The fourth proportional to 663,551,998.80, 995,327,998.20 and 593,679,973.20 is: 890,519,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,551,998.80 : 995,327,998.20 = 593,679,973.20 : x
  2. Step 2: Convert to fraction form
    663,551,998.80/995,327,998.20 = 593,679,973.20/x
  3. Step 3: Cross multiply
    663,551,998.80x = 995,327,998.20 × 593,679,973.20
  4. Step 4: Simplify right side
    663,551,998.80x = 590,906,299,296,585,728
  5. Step 5: Solve for x
    x = 590,906,299,296,585,728/663,551,998.80
  6. Step 6: Final answer
    x = 890,519,959.80

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Double scale
Find fourth proportional to 663,551,999.80, 995,327,999.70 and 593,679,974.20
Similar ratio
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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.