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Finding the Fourth Proportional to 353,438.94, 487,747.88 and 192,295.16

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Solution

The fourth proportional to 353,438.94, 487,747.88 and 192,295.16 is: 265,368.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,438.94 : 487,747.88 = 192,295.16 : x
  2. Step 2: Convert to fraction form
    353,438.94/487,747.88 = 192,295.16/x
  3. Step 3: Cross multiply
    353,438.94x = 487,747.88 × 192,295.16
  4. Step 4: Simplify right side
    353,438.94x = 93,791,558,517.79
  5. Step 5: Solve for x
    x = 93,791,558,517.79/353,438.94
  6. Step 6: Final answer
    x = 265,368.49

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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.