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Finding the Fourth Proportional to 7,338,532,940.80, 10,302,969,881.60 and 7,338,532,940.80

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Solution

The fourth proportional to 7,338,532,940.80, 10,302,969,881.60 and 7,338,532,940.80 is: 10,302,969,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338,532,940.80 : 10,302,969,881.60 = 7,338,532,940.80 : x
  2. Step 2: Convert to fraction form
    7,338,532,940.80/10,302,969,881.60 = 7,338,532,940.80/x
  3. Step 3: Cross multiply
    7,338,532,940.80x = 10,302,969,881.60 × 7,338,532,940.80
  4. Step 4: Simplify right side
    7,338,532,940.80x = 75,608,683,864,191,877,120
  5. Step 5: Solve for x
    x = 75,608,683,864,191,877,120/7,338,532,940.80
  6. Step 6: Final answer
    x = 10,302,969,881.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.