Home / 641,584.95-961,940.01-325,432.23

Finding the Fourth Proportional to 641,584.95, 961,940.01 and 325,432.23

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Solution

The fourth proportional to 641,584.95, 961,940.01 and 325,432.23 is: 487,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,584.95 : 961,940.01 = 325,432.23 : x
  2. Step 2: Convert to fraction form
    641,584.95/961,940.01 = 325,432.23/x
  3. Step 3: Cross multiply
    641,584.95x = 961,940.01 × 325,432.23
  4. Step 4: Simplify right side
    641,584.95x = 313,046,282,580.52
  5. Step 5: Solve for x
    x = 313,046,282,580.52/641,584.95
  6. Step 6: Final answer
    x = 487,926.47

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Double scale
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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.