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Finding the Fourth Proportional to 225,863.22, 340,844.57 and 218,334.54

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Solution

The fourth proportional to 225,863.22, 340,844.57 and 218,334.54 is: 329,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,863.22 : 340,844.57 = 218,334.54 : x
  2. Step 2: Convert to fraction form
    225,863.22/340,844.57 = 218,334.54/x
  3. Step 3: Cross multiply
    225,863.22x = 340,844.57 × 218,334.54
  4. Step 4: Simplify right side
    225,863.22x = 74,418,142,402.45
  5. Step 5: Solve for x
    x = 74,418,142,402.45/225,863.22
  6. Step 6: Final answer
    x = 329,483.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.