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Finding the Fourth Proportional to 297,560.72, 410,515.08 and 190,102.88

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Solution

The fourth proportional to 297,560.72, 410,515.08 and 190,102.88 is: 262,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,560.72 : 410,515.08 = 190,102.88 : x
  2. Step 2: Convert to fraction form
    297,560.72/410,515.08 = 190,102.88/x
  3. Step 3: Cross multiply
    297,560.72x = 410,515.08 × 190,102.88
  4. Step 4: Simplify right side
    297,560.72x = 78,040,098,991.43
  5. Step 5: Solve for x
    x = 78,040,098,991.43/297,560.72
  6. Step 6: Final answer
    x = 262,266.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.