Home / 839,185.20-1,258,779-640,632.92

Finding the Fourth Proportional to 839,185.20, 1,258,779 and 640,632.92

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Solution

The fourth proportional to 839,185.20, 1,258,779 and 640,632.92 is: 960,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,185.20 : 1,258,779 = 640,632.92 : x
  2. Step 2: Convert to fraction form
    839,185.20/1,258,779 = 640,632.92/x
  3. Step 3: Cross multiply
    839,185.20x = 1,258,779 × 640,632.92
  4. Step 4: Simplify right side
    839,185.20x = 806,415,266,404.68
  5. Step 5: Solve for x
    x = 806,415,266,404.68/839,185.20
  6. Step 6: Final answer
    x = 960,950.30

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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.