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Finding the Fourth Proportional to 352,356.63, 486,460.96 and 231,705.98

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Solution

The fourth proportional to 352,356.63, 486,460.96 and 231,705.98 is: 319,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,356.63 : 486,460.96 = 231,705.98 : x
  2. Step 2: Convert to fraction form
    352,356.63/486,460.96 = 231,705.98/x
  3. Step 3: Cross multiply
    352,356.63x = 486,460.96 × 231,705.98
  4. Step 4: Simplify right side
    352,356.63x = 112,715,912,281.20
  5. Step 5: Solve for x
    x = 112,715,912,281.20/352,356.63
  6. Step 6: Final answer
    x = 319,891.56

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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.