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Finding the Fourth Proportional to 471,630.80, 707,446.20 and 322,331.60

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Solution

The fourth proportional to 471,630.80, 707,446.20 and 322,331.60 is: 483,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,630.80 : 707,446.20 = 322,331.60 : x
  2. Step 2: Convert to fraction form
    471,630.80/707,446.20 = 322,331.60/x
  3. Step 3: Cross multiply
    471,630.80x = 707,446.20 × 322,331.60
  4. Step 4: Simplify right side
    471,630.80x = 228,032,265,559.92
  5. Step 5: Solve for x
    x = 228,032,265,559.92/471,630.80
  6. Step 6: Final answer
    x = 483,497.40

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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.