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Finding the Fourth Proportional to 448,863.75, 619,444.94 and 247,672.71

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Solution

The fourth proportional to 448,863.75, 619,444.94 and 247,672.71 is: 341,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,863.75 : 619,444.94 = 247,672.71 : x
  2. Step 2: Convert to fraction form
    448,863.75/619,444.94 = 247,672.71/x
  3. Step 3: Cross multiply
    448,863.75x = 619,444.94 × 247,672.71
  4. Step 4: Simplify right side
    448,863.75x = 153,419,605,747.22
  5. Step 5: Solve for x
    x = 153,419,605,747.22/448,863.75
  6. Step 6: Final answer
    x = 341,795.49

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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.