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Finding the Fourth Proportional to 361,336.84, 498,631.60 and 208,381.48

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Solution

The fourth proportional to 361,336.84, 498,631.60 and 208,381.48 is: 287,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,336.84 : 498,631.60 = 208,381.48 : x
  2. Step 2: Convert to fraction form
    361,336.84/498,631.60 = 208,381.48/x
  3. Step 3: Cross multiply
    361,336.84x = 498,631.60 × 208,381.48
  4. Step 4: Simplify right side
    361,336.84x = 103,905,590,782.77
  5. Step 5: Solve for x
    x = 103,905,590,782.77/361,336.84
  6. Step 6: Final answer
    x = 287,558.81

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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.