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Finding the Fourth Proportional to 641,205.80, 961,808.70 and 241,859.60

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Solution

The fourth proportional to 641,205.80, 961,808.70 and 241,859.60 is: 362,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,205.80 : 961,808.70 = 241,859.60 : x
  2. Step 2: Convert to fraction form
    641,205.80/961,808.70 = 241,859.60/x
  3. Step 3: Cross multiply
    641,205.80x = 961,808.70 × 241,859.60
  4. Step 4: Simplify right side
    641,205.80x = 232,622,667,458.52
  5. Step 5: Solve for x
    x = 232,622,667,458.52/641,205.80
  6. Step 6: Final answer
    x = 362,789.40

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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.