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Finding the Fourth Proportional to 448,956.28, 619,563.30 and 245,008.84

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Solution

The fourth proportional to 448,956.28, 619,563.30 and 245,008.84 is: 338,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,956.28 : 619,563.30 = 245,008.84 : x
  2. Step 2: Convert to fraction form
    448,956.28/619,563.30 = 245,008.84/x
  3. Step 3: Cross multiply
    448,956.28x = 619,563.30 × 245,008.84
  4. Step 4: Simplify right side
    448,956.28x = 151,798,485,439.57
  5. Step 5: Solve for x
    x = 151,798,485,439.57/448,956.28
  6. Step 6: Final answer
    x = 338,114.18

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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.