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Finding the Fourth Proportional to 296,057.80, 443,211.90 and 261,065.80

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Solution

The fourth proportional to 296,057.80, 443,211.90 and 261,065.80 is: 390,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,057.80 : 443,211.90 = 261,065.80 : x
  2. Step 2: Convert to fraction form
    296,057.80/443,211.90 = 261,065.80/x
  3. Step 3: Cross multiply
    296,057.80x = 443,211.90 × 261,065.80
  4. Step 4: Simplify right side
    296,057.80x = 115,707,469,243.02
  5. Step 5: Solve for x
    x = 115,707,469,243.02/296,057.80
  6. Step 6: Final answer
    x = 390,827.30

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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.