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Finding the Fourth Proportional to 626,015.88, 936,924.30 and 513,691.56

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Solution

The fourth proportional to 626,015.88, 936,924.30 and 513,691.56 is: 768,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,015.88 : 936,924.30 = 513,691.56 : x
  2. Step 2: Convert to fraction form
    626,015.88/936,924.30 = 513,691.56/x
  3. Step 3: Cross multiply
    626,015.88x = 936,924.30 × 513,691.56
  4. Step 4: Simplify right side
    626,015.88x = 481,290,105,268.91
  5. Step 5: Solve for x
    x = 481,290,105,268.91/626,015.88
  6. Step 6: Final answer
    x = 768,814.53

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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.