Home / 839,260.80-1,259,263.26-439,806.60

Finding the Fourth Proportional to 839,260.80, 1,259,263.26 and 439,806.60

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Solution

The fourth proportional to 839,260.80, 1,259,263.26 and 439,806.60 is: 659,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,260.80 : 1,259,263.26 = 439,806.60 : x
  2. Step 2: Convert to fraction form
    839,260.80/1,259,263.26 = 439,806.60/x
  3. Step 3: Cross multiply
    839,260.80x = 1,259,263.26 × 439,806.60
  4. Step 4: Simplify right side
    839,260.80x = 553,832,292,885.52
  5. Step 5: Solve for x
    x = 553,832,292,885.52/839,260.80
  6. Step 6: Final answer
    x = 659,904.87

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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.