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Finding the Fourth Proportional to 330,665.52, 456,321.64 and 179,765.76

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Solution

The fourth proportional to 330,665.52, 456,321.64 and 179,765.76 is: 248,078.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,665.52 : 456,321.64 = 179,765.76 : x
  2. Step 2: Convert to fraction form
    330,665.52/456,321.64 = 179,765.76/x
  3. Step 3: Cross multiply
    330,665.52x = 456,321.64 × 179,765.76
  4. Step 4: Simplify right side
    330,665.52x = 82,031,006,419.05
  5. Step 5: Solve for x
    x = 82,031,006,419.05/330,665.52
  6. Step 6: Final answer
    x = 248,078.50

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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.