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Finding the Fourth Proportional to 304,694.28, 420,479.10 and 166,873.32

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Solution

The fourth proportional to 304,694.28, 420,479.10 and 166,873.32 is: 230,285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,694.28 : 420,479.10 = 166,873.32 : x
  2. Step 2: Convert to fraction form
    304,694.28/420,479.10 = 166,873.32/x
  3. Step 3: Cross multiply
    304,694.28x = 420,479.10 × 166,873.32
  4. Step 4: Simplify right side
    304,694.28x = 70,166,743,407.61
  5. Step 5: Solve for x
    x = 70,166,743,407.61/304,694.28
  6. Step 6: Final answer
    x = 230,285.73

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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.