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Finding the Fourth Proportional to 492,750.72, 679,996.02 and 266,396.28

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Solution

The fourth proportional to 492,750.72, 679,996.02 and 266,396.28 is: 367,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,750.72 : 679,996.02 = 266,396.28 : x
  2. Step 2: Convert to fraction form
    492,750.72/679,996.02 = 266,396.28/x
  3. Step 3: Cross multiply
    492,750.72x = 679,996.02 × 266,396.28
  4. Step 4: Simplify right side
    492,750.72x = 181,148,410,142.81
  5. Step 5: Solve for x
    x = 181,148,410,142.81/492,750.72
  6. Step 6: Final answer
    x = 367,626.88

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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.