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Finding the Fourth Proportional to 492,497.06, 679,645.92 and 266,142.56

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Solution

The fourth proportional to 492,497.06, 679,645.92 and 266,142.56 is: 367,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,497.06 : 679,645.92 = 266,142.56 : x
  2. Step 2: Convert to fraction form
    492,497.06/679,645.92 = 266,142.56/x
  3. Step 3: Cross multiply
    492,497.06x = 679,645.92 × 266,142.56
  4. Step 4: Simplify right side
    492,497.06x = 180,882,705,042.36
  5. Step 5: Solve for x
    x = 180,882,705,042.36/492,497.06
  6. Step 6: Final answer
    x = 367,276.72

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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.