Home / 438,919.68-605,701.86-245,331.92

Finding the Fourth Proportional to 438,919.68, 605,701.86 and 245,331.92

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Solution

The fourth proportional to 438,919.68, 605,701.86 and 245,331.92 is: 338,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,919.68 : 605,701.86 = 245,331.92 : x
  2. Step 2: Convert to fraction form
    438,919.68/605,701.86 = 245,331.92/x
  3. Step 3: Cross multiply
    438,919.68x = 605,701.86 × 245,331.92
  4. Step 4: Simplify right side
    438,919.68x = 148,598,000,261.37
  5. Step 5: Solve for x
    x = 148,598,000,261.37/438,919.68
  6. Step 6: Final answer
    x = 338,553.97

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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.