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Finding the Fourth Proportional to 466,872.80, 699,502.80 and 217,042.40

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Solution

The fourth proportional to 466,872.80, 699,502.80 and 217,042.40 is: 325,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,872.80 : 699,502.80 = 217,042.40 : x
  2. Step 2: Convert to fraction form
    466,872.80/699,502.80 = 217,042.40/x
  3. Step 3: Cross multiply
    466,872.80x = 699,502.80 × 217,042.40
  4. Step 4: Simplify right side
    466,872.80x = 151,821,766,518.72
  5. Step 5: Solve for x
    x = 151,821,766,518.72/466,872.80
  6. Step 6: Final answer
    x = 325,188.72

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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.