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Finding the Fourth Proportional to 492,633.29, 679,833.81 and 266,278.79

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Solution

The fourth proportional to 492,633.29, 679,833.81 and 266,278.79 is: 367,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,633.29 : 679,833.81 = 266,278.79 : x
  2. Step 2: Convert to fraction form
    492,633.29/679,833.81 = 266,278.79/x
  3. Step 3: Cross multiply
    492,633.29x = 679,833.81 × 266,278.79
  4. Step 4: Simplify right side
    492,633.29x = 181,025,326,027.47
  5. Step 5: Solve for x
    x = 181,025,326,027.47/492,633.29
  6. Step 6: Final answer
    x = 367,464.66

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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.