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Finding the Fourth Proportional to 329,528.40, 493,709.40 and 308,533.20

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Solution

The fourth proportional to 329,528.40, 493,709.40 and 308,533.20 is: 462,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,528.40 : 493,709.40 = 308,533.20 : x
  2. Step 2: Convert to fraction form
    329,528.40/493,709.40 = 308,533.20/x
  3. Step 3: Cross multiply
    329,528.40x = 493,709.40 × 308,533.20
  4. Step 4: Simplify right side
    329,528.40x = 152,325,741,052.08
  5. Step 5: Solve for x
    x = 152,325,741,052.08/329,528.40
  6. Step 6: Final answer
    x = 462,253.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.