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Finding the Fourth Proportional to 373,234.32, 514,908.28 and 220,211.76

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Solution

The fourth proportional to 373,234.32, 514,908.28 and 220,211.76 is: 303,800.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,234.32 : 514,908.28 = 220,211.76 : x
  2. Step 2: Convert to fraction form
    373,234.32/514,908.28 = 220,211.76/x
  3. Step 3: Cross multiply
    373,234.32x = 514,908.28 × 220,211.76
  4. Step 4: Simplify right side
    373,234.32x = 113,388,858,577.37
  5. Step 5: Solve for x
    x = 113,388,858,577.37/373,234.32
  6. Step 6: Final answer
    x = 303,800.73

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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.