Home / 839,293.20-1,259,311.88-439,839

Finding the Fourth Proportional to 839,293.20, 1,259,311.88 and 439,839

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Solution

The fourth proportional to 839,293.20, 1,259,311.88 and 439,839 is: 659,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,293.20 : 1,259,311.88 = 439,839 : x
  2. Step 2: Convert to fraction form
    839,293.20/1,259,311.88 = 439,839/x
  3. Step 3: Cross multiply
    839,293.20x = 1,259,311.88 × 439,839
  4. Step 4: Simplify right side
    839,293.20x = 553,894,477,987.32
  5. Step 5: Solve for x
    x = 553,894,477,987.32/839,293.20
  6. Step 6: Final answer
    x = 659,953.49

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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.