Home / 669,686.92-923,907.47-379,231.79

Finding the Fourth Proportional to 669,686.92, 923,907.47 and 379,231.79

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Solution

The fourth proportional to 669,686.92, 923,907.47 and 379,231.79 is: 523,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,686.92 : 923,907.47 = 379,231.79 : x
  2. Step 2: Convert to fraction form
    669,686.92/923,907.47 = 379,231.79/x
  3. Step 3: Cross multiply
    669,686.92x = 923,907.47 × 379,231.79
  4. Step 4: Simplify right side
    669,686.92x = 350,375,083,642.47
  5. Step 5: Solve for x
    x = 350,375,083,642.47/669,686.92
  6. Step 6: Final answer
    x = 523,192.37

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1.5x scale

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.