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Finding the Fourth Proportional to 6,321,492.64, 8,723,659.62 and 3,420,883.48

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Solution

The fourth proportional to 6,321,492.64, 8,723,659.62 and 3,420,883.48 is: 4,720,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321,492.64 : 8,723,659.62 = 3,420,883.48 : x
  2. Step 2: Convert to fraction form
    6,321,492.64/8,723,659.62 = 3,420,883.48/x
  3. Step 3: Cross multiply
    6,321,492.64x = 8,723,659.62 × 3,420,883.48
  4. Step 4: Simplify right side
    6,321,492.64x = 29,842,623,079,201.07
  5. Step 5: Solve for x
    x = 29,842,623,079,201.07/6,321,492.64
  6. Step 6: Final answer
    x = 4,720,819.08

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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.