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Finding the Fourth Proportional to 295,675.20, 443,512.80 and 216,943.20

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Solution

The fourth proportional to 295,675.20, 443,512.80 and 216,943.20 is: 325,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,675.20 : 443,512.80 = 216,943.20 : x
  2. Step 2: Convert to fraction form
    295,675.20/443,512.80 = 216,943.20/x
  3. Step 3: Cross multiply
    295,675.20x = 443,512.80 × 216,943.20
  4. Step 4: Simplify right side
    295,675.20x = 96,217,086,072.96
  5. Step 5: Solve for x
    x = 96,217,086,072.96/295,675.20
  6. Step 6: Final answer
    x = 325,414.80

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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.