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Finding the Fourth Proportional to 492,614.92, 679,809.61 and 266,260.42

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Solution

The fourth proportional to 492,614.92, 679,809.61 and 266,260.42 is: 367,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,614.92 : 679,809.61 = 266,260.42 : x
  2. Step 2: Convert to fraction form
    492,614.92/679,809.61 = 266,260.42/x
  3. Step 3: Cross multiply
    492,614.92x = 679,809.61 × 266,260.42
  4. Step 4: Simplify right side
    492,614.92x = 181,006,392,278.64
  5. Step 5: Solve for x
    x = 181,006,392,278.64/492,614.92
  6. Step 6: Final answer
    x = 367,439.93

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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.