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Finding the Fourth Proportional to 448,885.12, 619,474.40 and 247,694.08

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Solution

The fourth proportional to 448,885.12, 619,474.40 and 247,694.08 is: 341,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,885.12 : 619,474.40 = 247,694.08 : x
  2. Step 2: Convert to fraction form
    448,885.12/619,474.40 = 247,694.08/x
  3. Step 3: Cross multiply
    448,885.12x = 619,474.40 × 247,694.08
  4. Step 4: Simplify right side
    448,885.12x = 153,440,141,591.55
  5. Step 5: Solve for x
    x = 153,440,141,591.55/448,885.12
  6. Step 6: Final answer
    x = 341,824.97

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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.