Home / 839,262.74-1,259,266.17-439,808.54

Finding the Fourth Proportional to 839,262.74, 1,259,266.17 and 439,808.54

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Solution

The fourth proportional to 839,262.74, 1,259,266.17 and 439,808.54 is: 659,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,262.74 : 1,259,266.17 = 439,808.54 : x
  2. Step 2: Convert to fraction form
    839,262.74/1,259,266.17 = 439,808.54/x
  3. Step 3: Cross multiply
    839,262.74x = 1,259,266.17 × 439,808.54
  4. Step 4: Simplify right side
    839,262.74x = 553,836,015,699.09
  5. Step 5: Solve for x
    x = 553,836,015,699.09/839,262.74
  6. Step 6: Final answer
    x = 659,907.78

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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.