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Finding the Fourth Proportional to 352,040.40, 485,813.10 and 190,895.22

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Solution

The fourth proportional to 352,040.40, 485,813.10 and 190,895.22 is: 263,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,040.40 : 485,813.10 = 190,895.22 : x
  2. Step 2: Convert to fraction form
    352,040.40/485,813.10 = 190,895.22/x
  3. Step 3: Cross multiply
    352,040.40x = 485,813.10 × 190,895.22
  4. Step 4: Simplify right side
    352,040.40x = 92,739,398,603.38
  5. Step 5: Solve for x
    x = 92,739,398,603.38/352,040.40
  6. Step 6: Final answer
    x = 263,433.97

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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.