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Finding the Fourth Proportional to 335,332.20, 502,415.10 and 275,845.80

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Solution

The fourth proportional to 335,332.20, 502,415.10 and 275,845.80 is: 413,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,332.20 : 502,415.10 = 275,845.80 : x
  2. Step 2: Convert to fraction form
    335,332.20/502,415.10 = 275,845.80/x
  3. Step 3: Cross multiply
    335,332.20x = 502,415.10 × 275,845.80
  4. Step 4: Simplify right side
    335,332.20x = 138,589,095,191.58
  5. Step 5: Solve for x
    x = 138,589,095,191.58/335,332.20
  6. Step 6: Final answer
    x = 413,288.96

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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.