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Finding the Fourth Proportional to 352,210.75, 485,379.64 and 345,732.67

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Solution

The fourth proportional to 352,210.75, 485,379.64 and 345,732.67 is: 476,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,210.75 : 485,379.64 = 345,732.67 : x
  2. Step 2: Convert to fraction form
    352,210.75/485,379.64 = 345,732.67/x
  3. Step 3: Cross multiply
    352,210.75x = 485,379.64 × 345,732.67
  4. Step 4: Simplify right side
    352,210.75x = 167,811,599,939.73
  5. Step 5: Solve for x
    x = 167,811,599,939.73/352,210.75
  6. Step 6: Final answer
    x = 476,452.24

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1.5x scale

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.