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Finding the Fourth Proportional to 1,002,407,998.80, 1,503,611,998.20 and 934,383,550.80

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Solution

The fourth proportional to 1,002,407,998.80, 1,503,611,998.20 and 934,383,550.80 is: 1,401,575,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,407,998.80 : 1,503,611,998.20 = 934,383,550.80 : x
  2. Step 2: Convert to fraction form
    1,002,407,998.80/1,503,611,998.20 = 934,383,550.80/x
  3. Step 3: Cross multiply
    1,002,407,998.80x = 1,503,611,998.20 × 934,383,550.80
  4. Step 4: Simplify right side
    1,002,407,998.80x = 1,404,950,317,903,599,104
  5. Step 5: Solve for x
    x = 1,404,950,317,903,599,104/1,002,407,998.80
  6. Step 6: Final answer
    x = 1,401,575,326.20

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Half scale
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Double scale
Find fourth proportional to 1,002,407,999.80, 1,503,611,999.70 and 934,383,551.80
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.