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Finding the Fourth Proportional to 5,183,998.98, 7,775,998.47 and 5,183,998.98

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Solution

The fourth proportional to 5,183,998.98, 7,775,998.47 and 5,183,998.98 is: 7,775,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183,998.98 : 7,775,998.47 = 5,183,998.98 : x
  2. Step 2: Convert to fraction form
    5,183,998.98/7,775,998.47 = 5,183,998.98/x
  3. Step 3: Cross multiply
    5,183,998.98x = 7,775,998.47 × 5,183,998.98
  4. Step 4: Simplify right side
    5,183,998.98x = 40,310,768,072,161.57
  5. Step 5: Solve for x
    x = 40,310,768,072,161.57/5,183,998.98
  6. Step 6: Final answer
    x = 7,775,998.47

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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.