Home / 839,364.20-1,259,418.14-439,909.48

Finding the Fourth Proportional to 839,364.20, 1,259,418.14 and 439,909.48

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Solution

The fourth proportional to 839,364.20, 1,259,418.14 and 439,909.48 is: 660,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,364.20 : 1,259,418.14 = 439,909.48 : x
  2. Step 2: Convert to fraction form
    839,364.20/1,259,418.14 = 439,909.48/x
  3. Step 3: Cross multiply
    839,364.20x = 1,259,418.14 × 439,909.48
  4. Step 4: Simplify right side
    839,364.20x = 554,029,979,069.97
  5. Step 5: Solve for x
    x = 554,029,979,069.97/839,364.20
  6. Step 6: Final answer
    x = 660,059.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.