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Finding the Fourth Proportional to 2,358,978,276.80, 3,538,467,415.20 and 2,213,576,019.20

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Solution

The fourth proportional to 2,358,978,276.80, 3,538,467,415.20 and 2,213,576,019.20 is: 3,320,364,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358,978,276.80 : 3,538,467,415.20 = 2,213,576,019.20 : x
  2. Step 2: Convert to fraction form
    2,358,978,276.80/3,538,467,415.20 = 2,213,576,019.20/x
  3. Step 3: Cross multiply
    2,358,978,276.80x = 3,538,467,415.20 × 2,213,576,019.20
  4. Step 4: Simplify right side
    2,358,978,276.80x = 7,832,666,615,007,328,256
  5. Step 5: Solve for x
    x = 7,832,666,615,007,328,256/2,358,978,276.80
  6. Step 6: Final answer
    x = 3,320,364,028.80

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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.