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Finding the Fourth Proportional to 577,786.39, 797,338.14 and 319,682.11

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Solution

The fourth proportional to 577,786.39, 797,338.14 and 319,682.11 is: 441,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,786.39 : 797,338.14 = 319,682.11 : x
  2. Step 2: Convert to fraction form
    577,786.39/797,338.14 = 319,682.11/x
  3. Step 3: Cross multiply
    577,786.39x = 797,338.14 × 319,682.11
  4. Step 4: Simplify right side
    577,786.39x = 254,894,738,978.68
  5. Step 5: Solve for x
    x = 254,894,738,978.68/577,786.39
  6. Step 6: Final answer
    x = 441,157.40

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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.