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Finding the Fourth Proportional to 306,017.46, 422,289.45 and 170,060.58

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Solution

The fourth proportional to 306,017.46, 422,289.45 and 170,060.58 is: 234,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,017.46 : 422,289.45 = 170,060.58 : x
  2. Step 2: Convert to fraction form
    306,017.46/422,289.45 = 170,060.58/x
  3. Step 3: Cross multiply
    306,017.46x = 422,289.45 × 170,060.58
  4. Step 4: Simplify right side
    306,017.46x = 71,814,788,794.88
  5. Step 5: Solve for x
    x = 71,814,788,794.88/306,017.46
  6. Step 6: Final answer
    x = 234,675.46

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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.