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Finding the Fourth Proportional to 424,400.18, 635,745.52 and 196,374.45

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Solution

The fourth proportional to 424,400.18, 635,745.52 and 196,374.45 is: 294,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,400.18 : 635,745.52 = 196,374.45 : x
  2. Step 2: Convert to fraction form
    424,400.18/635,745.52 = 196,374.45/x
  3. Step 3: Cross multiply
    424,400.18x = 635,745.52 × 196,374.45
  4. Step 4: Simplify right side
    424,400.18x = 124,844,176,339.03
  5. Step 5: Solve for x
    x = 124,844,176,339.03/424,400.18
  6. Step 6: Final answer
    x = 294,166.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.