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Finding the Fourth Proportional to 1,889,571,010.80, 2,639,277,214.80 and 1,889,571,010.80

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Solution

The fourth proportional to 1,889,571,010.80, 2,639,277,214.80 and 1,889,571,010.80 is: 2,639,277,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,571,010.80 : 2,639,277,214.80 = 1,889,571,010.80 : x
  2. Step 2: Convert to fraction form
    1,889,571,010.80/2,639,277,214.80 = 1,889,571,010.80/x
  3. Step 3: Cross multiply
    1,889,571,010.80x = 2,639,277,214.80 × 1,889,571,010.80
  4. Step 4: Simplify right side
    1,889,571,010.80x = 4,987,101,714,551,045,120
  5. Step 5: Solve for x
    x = 4,987,101,714,551,045,120/1,889,571,010.80
  6. Step 6: Final answer
    x = 2,639,277,214.80

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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.