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Finding the Fourth Proportional to 6,077,659.88, 8,378,962.80 and 3,898,419.68

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Solution

The fourth proportional to 6,077,659.88, 8,378,962.80 and 3,898,419.68 is: 5,374,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077,659.88 : 8,378,962.80 = 3,898,419.68 : x
  2. Step 2: Convert to fraction form
    6,077,659.88/8,378,962.80 = 3,898,419.68/x
  3. Step 3: Cross multiply
    6,077,659.88x = 8,378,962.80 × 3,898,419.68
  4. Step 4: Simplify right side
    6,077,659.88x = 32,664,713,477,507.91
  5. Step 5: Solve for x
    x = 32,664,713,477,507.91/6,077,659.88
  6. Step 6: Final answer
    x = 5,374,554.37

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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.