Home / 666,614.37-919,927.23-376,287.05

Finding the Fourth Proportional to 666,614.37, 919,927.23 and 376,287.05

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Solution

The fourth proportional to 666,614.37, 919,927.23 and 376,287.05 is: 519,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,614.37 : 919,927.23 = 376,287.05 : x
  2. Step 2: Convert to fraction form
    666,614.37/919,927.23 = 376,287.05/x
  3. Step 3: Cross multiply
    666,614.37x = 919,927.23 × 376,287.05
  4. Step 4: Simplify right side
    666,614.37x = 346,156,698,991.74
  5. Step 5: Solve for x
    x = 346,156,698,991.74/666,614.37
  6. Step 6: Final answer
    x = 519,275.78

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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.