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Finding the Fourth Proportional to 492,422.88, 679,543.37 and 266,068.38

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Solution

The fourth proportional to 492,422.88, 679,543.37 and 266,068.38 is: 367,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,422.88 : 679,543.37 = 266,068.38 : x
  2. Step 2: Convert to fraction form
    492,422.88/679,543.37 = 266,068.38/x
  3. Step 3: Cross multiply
    492,422.88x = 679,543.37 × 266,068.38
  4. Step 4: Simplify right side
    492,422.88x = 180,805,002,265.30
  5. Step 5: Solve for x
    x = 180,805,002,265.30/492,422.88
  6. Step 6: Final answer
    x = 367,174.25

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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.