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Finding the Fourth Proportional to 495,168.89, 683,338.56 and 280,304.24

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Solution

The fourth proportional to 495,168.89, 683,338.56 and 280,304.24 is: 386,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,168.89 : 683,338.56 = 280,304.24 : x
  2. Step 2: Convert to fraction form
    495,168.89/683,338.56 = 280,304.24/x
  3. Step 3: Cross multiply
    495,168.89x = 683,338.56 × 280,304.24
  4. Step 4: Simplify right side
    495,168.89x = 191,542,695,723.49
  5. Step 5: Solve for x
    x = 191,542,695,723.49/495,168.89
  6. Step 6: Final answer
    x = 386,822.96

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1.5x scale

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.