Home / 839,276.89-1,259,287.44-439,822.69

Finding the Fourth Proportional to 839,276.89, 1,259,287.44 and 439,822.69

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Solution

The fourth proportional to 839,276.89, 1,259,287.44 and 439,822.69 is: 659,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,276.89 : 1,259,287.44 = 439,822.69 : x
  2. Step 2: Convert to fraction form
    839,276.89/1,259,287.44 = 439,822.69/x
  3. Step 3: Cross multiply
    839,276.89x = 1,259,287.44 × 439,822.69
  4. Step 4: Simplify right side
    839,276.89x = 553,863,183,047.58
  5. Step 5: Solve for x
    x = 553,863,183,047.58/839,276.89
  6. Step 6: Final answer
    x = 659,929.03

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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.