Home / 641,218.20-960,515.10-325,852.80

Finding the Fourth Proportional to 641,218.20, 960,515.10 and 325,852.80

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Solution

The fourth proportional to 641,218.20, 960,515.10 and 325,852.80 is: 488,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,218.20 : 960,515.10 = 325,852.80 : x
  2. Step 2: Convert to fraction form
    641,218.20/960,515.10 = 325,852.80/x
  3. Step 3: Cross multiply
    641,218.20x = 960,515.10 × 325,852.80
  4. Step 4: Simplify right side
    641,218.20x = 312,986,534,777.28
  5. Step 5: Solve for x
    x = 312,986,534,777.28/641,218.20
  6. Step 6: Final answer
    x = 488,112.37

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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.