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Finding the Fourth Proportional to 691,997.12, 954,952.96 and 374,045.12

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Solution

The fourth proportional to 691,997.12, 954,952.96 and 374,045.12 is: 516,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,997.12 : 954,952.96 = 374,045.12 : x
  2. Step 2: Convert to fraction form
    691,997.12/954,952.96 = 374,045.12/x
  3. Step 3: Cross multiply
    691,997.12x = 954,952.96 × 374,045.12
  4. Step 4: Simplify right side
    691,997.12x = 357,195,494,517.56
  5. Step 5: Solve for x
    x = 357,195,494,517.56/691,997.12
  6. Step 6: Final answer
    x = 516,180.61

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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.