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Finding the Fourth Proportional to 695,659.80, 959,564.46 and 477,763.32

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Solution

The fourth proportional to 695,659.80, 959,564.46 and 477,763.32 is: 659,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,659.80 : 959,564.46 = 477,763.32 : x
  2. Step 2: Convert to fraction form
    695,659.80/959,564.46 = 477,763.32/x
  3. Step 3: Cross multiply
    695,659.80x = 959,564.46 × 477,763.32
  4. Step 4: Simplify right side
    695,659.80x = 458,444,702,163.61
  5. Step 5: Solve for x
    x = 458,444,702,163.61/695,659.80
  6. Step 6: Final answer
    x = 659,007.03

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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.