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Finding the Fourth Proportional to 492,591.93, 679,776.55 and 266,237.43

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Solution

The fourth proportional to 492,591.93, 679,776.55 and 266,237.43 is: 367,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,591.93 : 679,776.55 = 266,237.43 : x
  2. Step 2: Convert to fraction form
    492,591.93/679,776.55 = 266,237.43/x
  3. Step 3: Cross multiply
    492,591.93x = 679,776.55 × 266,237.43
  4. Step 4: Simplify right side
    492,591.93x = 180,981,958,431.51
  5. Step 5: Solve for x
    x = 180,981,958,431.51/492,591.93
  6. Step 6: Final answer
    x = 367,407.48

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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.