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Finding the Fourth Proportional to 448,858.75, 619,438.04 and 247,667.71

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Solution

The fourth proportional to 448,858.75, 619,438.04 and 247,667.71 is: 341,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,858.75 : 619,438.04 = 247,667.71 : x
  2. Step 2: Convert to fraction form
    448,858.75/619,438.04 = 247,667.71/x
  3. Step 3: Cross multiply
    448,858.75x = 619,438.04 × 247,667.71
  4. Step 4: Simplify right side
    448,858.75x = 153,414,800,853.69
  5. Step 5: Solve for x
    x = 153,414,800,853.69/448,858.75
  6. Step 6: Final answer
    x = 341,788.59

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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.