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Finding the Fourth Proportional to 359,191.78, 534,546.67 and 347,231.86

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Solution

The fourth proportional to 359,191.78, 534,546.67 and 347,231.86 is: 516,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,191.78 : 534,546.67 = 347,231.86 : x
  2. Step 2: Convert to fraction form
    359,191.78/534,546.67 = 347,231.86/x
  3. Step 3: Cross multiply
    359,191.78x = 534,546.67 × 347,231.86
  4. Step 4: Simplify right side
    359,191.78x = 185,611,632,744.75
  5. Step 5: Solve for x
    x = 185,611,632,744.75/359,191.78
  6. Step 6: Final answer
    x = 516,748.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.