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Finding the Fourth Proportional to 473,469.83, 653,218.58 and 279,836.90

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Solution

The fourth proportional to 473,469.83, 653,218.58 and 279,836.90 is: 386,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,469.83 : 653,218.58 = 279,836.90 : x
  2. Step 2: Convert to fraction form
    473,469.83/653,218.58 = 279,836.90/x
  3. Step 3: Cross multiply
    473,469.83x = 653,218.58 × 279,836.90
  4. Step 4: Simplify right side
    473,469.83x = 182,794,659,883.10
  5. Step 5: Solve for x
    x = 182,794,659,883.10/473,469.83
  6. Step 6: Final answer
    x = 386,074.57

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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.