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Finding the Fourth Proportional to 359,268.20, 538,902.30 and 264,789.80

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Solution

The fourth proportional to 359,268.20, 538,902.30 and 264,789.80 is: 397,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,268.20 : 538,902.30 = 264,789.80 : x
  2. Step 2: Convert to fraction form
    359,268.20/538,902.30 = 264,789.80/x
  3. Step 3: Cross multiply
    359,268.20x = 538,902.30 × 264,789.80
  4. Step 4: Simplify right side
    359,268.20x = 142,695,832,236.54
  5. Step 5: Solve for x
    x = 142,695,832,236.54/359,268.20
  6. Step 6: Final answer
    x = 397,184.70

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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.