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Finding the Fourth Proportional to 448,617.44, 619,049.04 and 247,400.48

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Solution

The fourth proportional to 448,617.44, 619,049.04 and 247,400.48 is: 341,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,617.44 : 619,049.04 = 247,400.48 : x
  2. Step 2: Convert to fraction form
    448,617.44/619,049.04 = 247,400.48/x
  3. Step 3: Cross multiply
    448,617.44x = 619,049.04 × 247,400.48
  4. Step 4: Simplify right side
    448,617.44x = 153,153,029,639.54
  5. Step 5: Solve for x
    x = 153,153,029,639.54/448,617.44
  6. Step 6: Final answer
    x = 341,388.93

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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.