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Finding the Fourth Proportional to 352,314.56, 485,522.92 and 345,836.81

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Solution

The fourth proportional to 352,314.56, 485,522.92 and 345,836.81 is: 476,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,314.56 : 485,522.92 = 345,836.81 : x
  2. Step 2: Convert to fraction form
    352,314.56/485,522.92 = 345,836.81/x
  3. Step 3: Cross multiply
    352,314.56x = 485,522.92 × 345,836.81
  4. Step 4: Simplify right side
    352,314.56x = 167,911,697,834.69
  5. Step 5: Solve for x
    x = 167,911,697,834.69/352,314.56
  6. Step 6: Final answer
    x = 476,595.97

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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.