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Finding the Fourth Proportional to 492,226.12, 679,274.82 and 277,369.48

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Solution

The fourth proportional to 492,226.12, 679,274.82 and 277,369.48 is: 382,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,226.12 : 679,274.82 = 277,369.48 : x
  2. Step 2: Convert to fraction form
    492,226.12/679,274.82 = 277,369.48/x
  3. Step 3: Cross multiply
    492,226.12x = 679,274.82 × 277,369.48
  4. Step 4: Simplify right side
    492,226.12x = 188,410,103,600.49
  5. Step 5: Solve for x
    x = 188,410,103,600.49/492,226.12
  6. Step 6: Final answer
    x = 382,771.45

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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.