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Finding the Fourth Proportional to 422,545.80, 632,652.30 and 329,233.80

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Solution

The fourth proportional to 422,545.80, 632,652.30 and 329,233.80 is: 492,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,545.80 : 632,652.30 = 329,233.80 : x
  2. Step 2: Convert to fraction form
    422,545.80/632,652.30 = 329,233.80/x
  3. Step 3: Cross multiply
    422,545.80x = 632,652.30 × 329,233.80
  4. Step 4: Simplify right side
    422,545.80x = 208,290,520,807.74
  5. Step 5: Solve for x
    x = 208,290,520,807.74/422,545.80
  6. Step 6: Final answer
    x = 492,941.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.