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Finding the Fourth Proportional to 334,064.80, 501,097.20 and 259,415.20

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Solution

The fourth proportional to 334,064.80, 501,097.20 and 259,415.20 is: 389,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,064.80 : 501,097.20 = 259,415.20 : x
  2. Step 2: Convert to fraction form
    334,064.80/501,097.20 = 259,415.20/x
  3. Step 3: Cross multiply
    334,064.80x = 501,097.20 × 259,415.20
  4. Step 4: Simplify right side
    334,064.80x = 129,992,230,357.44
  5. Step 5: Solve for x
    x = 129,992,230,357.44/334,064.80
  6. Step 6: Final answer
    x = 389,122.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.