Home / 666,408.06-919,634.31-379,933.74

Finding the Fourth Proportional to 666,408.06, 919,634.31 and 379,933.74

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Solution

The fourth proportional to 666,408.06, 919,634.31 and 379,933.74 is: 524,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,408.06 : 919,634.31 = 379,933.74 : x
  2. Step 2: Convert to fraction form
    666,408.06/919,634.31 = 379,933.74/x
  3. Step 3: Cross multiply
    666,408.06x = 919,634.31 × 379,933.74
  4. Step 4: Simplify right side
    666,408.06x = 349,400,102,830.62
  5. Step 5: Solve for x
    x = 349,400,102,830.62/666,408.06
  6. Step 6: Final answer
    x = 524,303.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.