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Finding the Fourth Proportional to 495,048.63, 741,630.31 and 281,963.63

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Solution

The fourth proportional to 495,048.63, 741,630.31 and 281,963.63 is: 422,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,048.63 : 741,630.31 = 281,963.63 : x
  2. Step 2: Convert to fraction form
    495,048.63/741,630.31 = 281,963.63/x
  3. Step 3: Cross multiply
    495,048.63x = 741,630.31 × 281,963.63
  4. Step 4: Simplify right side
    495,048.63x = 209,112,774,325.63
  5. Step 5: Solve for x
    x = 209,112,774,325.63/495,048.63
  6. Step 6: Final answer
    x = 422,408.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.