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Finding the Fourth Proportional to 495,993.64, 684,524.75 and 281,110.65

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Solution

The fourth proportional to 495,993.64, 684,524.75 and 281,110.65 is: 387,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,993.64 : 684,524.75 = 281,110.65 : x
  2. Step 2: Convert to fraction form
    495,993.64/684,524.75 = 281,110.65/x
  3. Step 3: Cross multiply
    495,993.64x = 684,524.75 × 281,110.65
  4. Step 4: Simplify right side
    495,993.64x = 192,427,197,413.59
  5. Step 5: Solve for x
    x = 192,427,197,413.59/495,993.64
  6. Step 6: Final answer
    x = 387,963.03

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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.