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Finding the Fourth Proportional to 325,959.36, 488,839.56 and 225,403.84

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Solution

The fourth proportional to 325,959.36, 488,839.56 and 225,403.84 is: 338,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,959.36 : 488,839.56 = 225,403.84 : x
  2. Step 2: Convert to fraction form
    325,959.36/488,839.56 = 225,403.84/x
  3. Step 3: Cross multiply
    325,959.36x = 488,839.56 × 225,403.84
  4. Step 4: Simplify right side
    325,959.36x = 110,186,313,967.91
  5. Step 5: Solve for x
    x = 110,186,313,967.91/325,959.36
  6. Step 6: Final answer
    x = 338,036.97

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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.