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Finding the Fourth Proportional to 3,477,704.64, 4,798,992.04 and 1,928,820.21

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Solution

The fourth proportional to 3,477,704.64, 4,798,992.04 and 1,928,820.21 is: 2,661,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477,704.64 : 4,798,992.04 = 1,928,820.21 : x
  2. Step 2: Convert to fraction form
    3,477,704.64/4,798,992.04 = 1,928,820.21/x
  3. Step 3: Cross multiply
    3,477,704.64x = 4,798,992.04 × 1,928,820.21
  4. Step 4: Simplify right side
    3,477,704.64x = 9,256,392,834,381.13
  5. Step 5: Solve for x
    x = 9,256,392,834,381.13/3,477,704.64
  6. Step 6: Final answer
    x = 2,661,638.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.