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Finding the Fourth Proportional to 329,082.60, 454,179.09 and 189,378.33

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Solution

The fourth proportional to 329,082.60, 454,179.09 and 189,378.33 is: 261,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,082.60 : 454,179.09 = 189,378.33 : x
  2. Step 2: Convert to fraction form
    329,082.60/454,179.09 = 189,378.33/x
  3. Step 3: Cross multiply
    329,082.60x = 454,179.09 × 189,378.33
  4. Step 4: Simplify right side
    329,082.60x = 86,011,677,585.12
  5. Step 5: Solve for x
    x = 86,011,677,585.12/329,082.60
  6. Step 6: Final answer
    x = 261,368.05

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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.