Home / 839,287.05-1,259,302.67-439,832.85

Finding the Fourth Proportional to 839,287.05, 1,259,302.67 and 439,832.85

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Solution

The fourth proportional to 839,287.05, 1,259,302.67 and 439,832.85 is: 659,944.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,287.05 : 1,259,302.67 = 439,832.85 : x
  2. Step 2: Convert to fraction form
    839,287.05/1,259,302.67 = 439,832.85/x
  3. Step 3: Cross multiply
    839,287.05x = 1,259,302.67 × 439,832.85
  4. Step 4: Simplify right side
    839,287.05x = 553,882,682,358.71
  5. Step 5: Solve for x
    x = 553,882,682,358.71/839,287.05
  6. Step 6: Final answer
    x = 659,944.27

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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.