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Finding the Fourth Proportional to 544,489.54, 751,089.15 and 326,640.25

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Solution

The fourth proportional to 544,489.54, 751,089.15 and 326,640.25 is: 450,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,489.54 : 751,089.15 = 326,640.25 : x
  2. Step 2: Convert to fraction form
    544,489.54/751,089.15 = 326,640.25/x
  3. Step 3: Cross multiply
    544,489.54x = 751,089.15 × 326,640.25
  4. Step 4: Simplify right side
    544,489.54x = 245,335,947,728.29
  5. Step 5: Solve for x
    x = 245,335,947,728.29/544,489.54
  6. Step 6: Final answer
    x = 450,579.73

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.