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Finding the Fourth Proportional to 495,892.34, 684,305.18 and 281,034.98

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Solution

The fourth proportional to 495,892.34, 684,305.18 and 281,034.98 is: 387,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,892.34 : 684,305.18 = 281,034.98 : x
  2. Step 2: Convert to fraction form
    495,892.34/684,305.18 = 281,034.98/x
  3. Step 3: Cross multiply
    495,892.34x = 684,305.18 × 281,034.98
  4. Step 4: Simplify right side
    495,892.34x = 192,313,692,575.20
  5. Step 5: Solve for x
    x = 192,313,692,575.20/495,892.34
  6. Step 6: Final answer
    x = 387,813.40

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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.