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Finding the Fourth Proportional to 448,840.44, 619,382.70 and 247,636.44

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Solution

The fourth proportional to 448,840.44, 619,382.70 and 247,636.44 is: 341,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,840.44 : 619,382.70 = 247,636.44 : x
  2. Step 2: Convert to fraction form
    448,840.44/619,382.70 = 247,636.44/x
  3. Step 3: Cross multiply
    448,840.44x = 619,382.70 × 247,636.44
  4. Step 4: Simplify right side
    448,840.44x = 153,381,726,825.59
  5. Step 5: Solve for x
    x = 153,381,726,825.59/448,840.44
  6. Step 6: Final answer
    x = 341,728.85

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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.