Home / 438,956.38-605,808.98-247,982.07

Finding the Fourth Proportional to 438,956.38, 605,808.98 and 247,982.07

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Solution

The fourth proportional to 438,956.38, 605,808.98 and 247,982.07 is: 342,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,956.38 : 605,808.98 = 247,982.07 : x
  2. Step 2: Convert to fraction form
    438,956.38/605,808.98 = 247,982.07/x
  3. Step 3: Cross multiply
    438,956.38x = 605,808.98 × 247,982.07
  4. Step 4: Simplify right side
    438,956.38x = 150,229,764,884.99
  5. Step 5: Solve for x
    x = 150,229,764,884.99/438,956.38
  6. Step 6: Final answer
    x = 342,243.04

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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.