Home / 511,781.02-768,336.74-393,535.37

Finding the Fourth Proportional to 511,781.02, 768,336.74 and 393,535.37

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Solution

The fourth proportional to 511,781.02, 768,336.74 and 393,535.37 is: 590,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,781.02 : 768,336.74 = 393,535.37 : x
  2. Step 2: Convert to fraction form
    511,781.02/768,336.74 = 393,535.37/x
  3. Step 3: Cross multiply
    511,781.02x = 768,336.74 × 393,535.37
  4. Step 4: Simplify right side
    511,781.02x = 302,367,681,292.82
  5. Step 5: Solve for x
    x = 302,367,681,292.82/511,781.02
  6. Step 6: Final answer
    x = 590,814.57

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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.