Home / 439,143.59-605,949.27-255,422.81

Finding the Fourth Proportional to 439,143.59, 605,949.27 and 255,422.81

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Solution

The fourth proportional to 439,143.59, 605,949.27 and 255,422.81 is: 352,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,143.59 : 605,949.27 = 255,422.81 : x
  2. Step 2: Convert to fraction form
    439,143.59/605,949.27 = 255,422.81/x
  3. Step 3: Cross multiply
    439,143.59x = 605,949.27 × 255,422.81
  4. Step 4: Simplify right side
    439,143.59x = 154,773,265,260.85
  5. Step 5: Solve for x
    x = 154,773,265,260.85/439,143.59
  6. Step 6: Final answer
    x = 352,443.41

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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.