Home / 619,922.52-855,273.06-405,186.57

Finding the Fourth Proportional to 619,922.52, 855,273.06 and 405,186.57

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Solution

The fourth proportional to 619,922.52, 855,273.06 and 405,186.57 is: 559,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,922.52 : 855,273.06 = 405,186.57 : x
  2. Step 2: Convert to fraction form
    619,922.52/855,273.06 = 405,186.57/x
  3. Step 3: Cross multiply
    619,922.52x = 855,273.06 × 405,186.57
  4. Step 4: Simplify right side
    619,922.52x = 346,545,157,594.80
  5. Step 5: Solve for x
    x = 346,545,157,594.80/619,922.52
  6. Step 6: Final answer
    x = 559,013.66

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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.