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Finding the Fourth Proportional to 330,956.70, 456,722.22 and 180,054.78

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Solution

The fourth proportional to 330,956.70, 456,722.22 and 180,054.78 is: 248,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,956.70 : 456,722.22 = 180,054.78 : x
  2. Step 2: Convert to fraction form
    330,956.70/456,722.22 = 180,054.78/x
  3. Step 3: Cross multiply
    330,956.70x = 456,722.22 × 180,054.78
  4. Step 4: Simplify right side
    330,956.70x = 82,235,018,843.21
  5. Step 5: Solve for x
    x = 82,235,018,843.21/330,956.70
  6. Step 6: Final answer
    x = 248,476.67

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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.