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Finding the Fourth Proportional to 352,313.56, 485,521.54 and 345,835.81

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Solution

The fourth proportional to 352,313.56, 485,521.54 and 345,835.81 is: 476,594.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,313.56 : 485,521.54 = 345,835.81 : x
  2. Step 2: Convert to fraction form
    352,313.56/485,521.54 = 345,835.81/x
  3. Step 3: Cross multiply
    352,313.56x = 485,521.54 × 345,835.81
  4. Step 4: Simplify right side
    352,313.56x = 167,910,735,058.35
  5. Step 5: Solve for x
    x = 167,910,735,058.35/352,313.56
  6. Step 6: Final answer
    x = 476,594.59

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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.