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Finding the Fourth Proportional to 369,394.82, 554,879.81 and 347,797.90

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Solution

The fourth proportional to 369,394.82, 554,879.81 and 347,797.90 is: 522,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,394.82 : 554,879.81 = 347,797.90 : x
  2. Step 2: Convert to fraction form
    369,394.82/554,879.81 = 347,797.90/x
  3. Step 3: Cross multiply
    369,394.82x = 554,879.81 × 347,797.90
  4. Step 4: Simplify right side
    369,394.82x = 192,986,032,670.40
  5. Step 5: Solve for x
    x = 192,986,032,670.40/369,394.82
  6. Step 6: Final answer
    x = 522,438.38

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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.