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Finding the Fourth Proportional to 298,964.45, 412,555.30 and 169,885.66

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Solution

The fourth proportional to 298,964.45, 412,555.30 and 169,885.66 is: 234,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,964.45 : 412,555.30 = 169,885.66 : x
  2. Step 2: Convert to fraction form
    298,964.45/412,555.30 = 169,885.66/x
  3. Step 3: Cross multiply
    298,964.45x = 412,555.30 × 169,885.66
  4. Step 4: Simplify right side
    298,964.45x = 70,087,229,427.00
  5. Step 5: Solve for x
    x = 70,087,229,427.00/298,964.45
  6. Step 6: Final answer
    x = 234,433.33

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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.