Home / 439,126.11-605,986.14-248,135.40

Finding the Fourth Proportional to 439,126.11, 605,986.14 and 248,135.40

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Solution

The fourth proportional to 439,126.11, 605,986.14 and 248,135.40 is: 342,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,126.11 : 605,986.14 = 248,135.40 : x
  2. Step 2: Convert to fraction form
    439,126.11/605,986.14 = 248,135.40/x
  3. Step 3: Cross multiply
    439,126.11x = 605,986.14 × 248,135.40
  4. Step 4: Simplify right side
    439,126.11x = 150,366,614,173.86
  5. Step 5: Solve for x
    x = 150,366,614,173.86/439,126.11
  6. Step 6: Final answer
    x = 342,422.39

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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.