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Finding the Fourth Proportional to 312,226.89, 430,883.56 and 191,344.84

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Solution

The fourth proportional to 312,226.89, 430,883.56 and 191,344.84 is: 264,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,226.89 : 430,883.56 = 191,344.84 : x
  2. Step 2: Convert to fraction form
    312,226.89/430,883.56 = 191,344.84/x
  3. Step 3: Cross multiply
    312,226.89x = 430,883.56 × 191,344.84
  4. Step 4: Simplify right side
    312,226.89x = 82,447,345,846.83
  5. Step 5: Solve for x
    x = 82,447,345,846.83/312,226.89
  6. Step 6: Final answer
    x = 264,062.28

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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.