Home / 641,260.80-961,891.20-247,276.80

Finding the Fourth Proportional to 641,260.80, 961,891.20 and 247,276.80

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Solution

The fourth proportional to 641,260.80, 961,891.20 and 247,276.80 is: 370,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,260.80 : 961,891.20 = 247,276.80 : x
  2. Step 2: Convert to fraction form
    641,260.80/961,891.20 = 247,276.80/x
  3. Step 3: Cross multiply
    641,260.80x = 961,891.20 × 247,276.80
  4. Step 4: Simplify right side
    641,260.80x = 237,853,377,884.16
  5. Step 5: Solve for x
    x = 237,853,377,884.16/641,260.80
  6. Step 6: Final answer
    x = 370,915.20

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Double scale
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Similar ratio
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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.