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Finding the Fourth Proportional to 538,068.50, 806,549.12 and 238,690.08

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Solution

The fourth proportional to 538,068.50, 806,549.12 and 238,690.08 is: 357,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,068.50 : 806,549.12 = 238,690.08 : x
  2. Step 2: Convert to fraction form
    538,068.50/806,549.12 = 238,690.08/x
  3. Step 3: Cross multiply
    538,068.50x = 806,549.12 × 238,690.08
  4. Step 4: Simplify right side
    538,068.50x = 192,515,273,976.73
  5. Step 5: Solve for x
    x = 192,515,273,976.73/538,068.50
  6. Step 6: Final answer
    x = 357,789.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.