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Finding the Fourth Proportional to 464,010.80, 696,016.20 and 285,940.40

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Solution

The fourth proportional to 464,010.80, 696,016.20 and 285,940.40 is: 428,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,010.80 : 696,016.20 = 285,940.40 : x
  2. Step 2: Convert to fraction form
    464,010.80/696,016.20 = 285,940.40/x
  3. Step 3: Cross multiply
    464,010.80x = 696,016.20 × 285,940.40
  4. Step 4: Simplify right side
    464,010.80x = 199,019,150,634.48
  5. Step 5: Solve for x
    x = 199,019,150,634.48/464,010.80
  6. Step 6: Final answer
    x = 428,910.60

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Similar ratio
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1.5x scale

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.