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Finding the Fourth Proportional to 495,992.52, 684,523.20 and 281,109.52

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Solution

The fourth proportional to 495,992.52, 684,523.20 and 281,109.52 is: 387,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,992.52 : 684,523.20 = 281,109.52 : x
  2. Step 2: Convert to fraction form
    495,992.52/684,523.20 = 281,109.52/x
  3. Step 3: Cross multiply
    495,992.52x = 684,523.20 × 281,109.52
  4. Step 4: Simplify right side
    495,992.52x = 192,425,988,180.86
  5. Step 5: Solve for x
    x = 192,425,988,180.86/495,992.52
  6. Step 6: Final answer
    x = 387,961.47

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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.