Home / 438,921.68-605,704.62-245,333.92

Finding the Fourth Proportional to 438,921.68, 605,704.62 and 245,333.92

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Solution

The fourth proportional to 438,921.68, 605,704.62 and 245,333.92 is: 338,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,921.68 : 605,704.62 = 245,333.92 : x
  2. Step 2: Convert to fraction form
    438,921.68/605,704.62 = 245,333.92/x
  3. Step 3: Cross multiply
    438,921.68x = 605,704.62 × 245,333.92
  4. Step 4: Simplify right side
    438,921.68x = 148,599,888,786.71
  5. Step 5: Solve for x
    x = 148,599,888,786.71/438,921.68
  6. Step 6: Final answer
    x = 338,556.73

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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.