Home / 839,540.20-1,259,682.54-440,085.64

Finding the Fourth Proportional to 839,540.20, 1,259,682.54 and 440,085.64

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Solution

The fourth proportional to 839,540.20, 1,259,682.54 and 440,085.64 is: 660,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,540.20 : 1,259,682.54 = 440,085.64 : x
  2. Step 2: Convert to fraction form
    839,540.20/1,259,682.54 = 440,085.64/x
  3. Step 3: Cross multiply
    839,540.20x = 1,259,682.54 × 440,085.64
  4. Step 4: Simplify right side
    839,540.20x = 554,368,196,812.73
  5. Step 5: Solve for x
    x = 554,368,196,812.73/839,540.20
  6. Step 6: Final answer
    x = 660,323.59

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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.