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Finding the Fourth Proportional to 633,311,999.20, 949,967,998.80 and 633,311,999.20

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Solution

The fourth proportional to 633,311,999.20, 949,967,998.80 and 633,311,999.20 is: 949,967,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,311,999.20 : 949,967,998.80 = 633,311,999.20 : x
  2. Step 2: Convert to fraction form
    633,311,999.20/949,967,998.80 = 633,311,999.20/x
  3. Step 3: Cross multiply
    633,311,999.20x = 949,967,998.80 × 633,311,999.20
  4. Step 4: Simplify right side
    633,311,999.20x = 601,626,132,496,051,200
  5. Step 5: Solve for x
    x = 601,626,132,496,051,200/633,311,999.20
  6. Step 6: Final answer
    x = 949,967,998.80

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Double scale
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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.