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Finding the Fourth Proportional to 322,799.88, 445,446.12 and 177,602.88

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Solution

The fourth proportional to 322,799.88, 445,446.12 and 177,602.88 is: 245,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,799.88 : 445,446.12 = 177,602.88 : x
  2. Step 2: Convert to fraction form
    322,799.88/445,446.12 = 177,602.88/x
  3. Step 3: Cross multiply
    322,799.88x = 445,446.12 × 177,602.88
  4. Step 4: Simplify right side
    322,799.88x = 79,112,513,796.83
  5. Step 5: Solve for x
    x = 79,112,513,796.83/322,799.88
  6. Step 6: Final answer
    x = 245,082.23

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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.