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Finding the Fourth Proportional to 523,786.68, 786,071.31 and 354,906.54

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Solution

The fourth proportional to 523,786.68, 786,071.31 and 354,906.54 is: 532,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,786.68 : 786,071.31 = 354,906.54 : x
  2. Step 2: Convert to fraction form
    523,786.68/786,071.31 = 354,906.54/x
  3. Step 3: Cross multiply
    523,786.68x = 786,071.31 × 354,906.54
  4. Step 4: Simplify right side
    523,786.68x = 278,981,848,825.37
  5. Step 5: Solve for x
    x = 278,981,848,825.37/523,786.68
  6. Step 6: Final answer
    x = 532,624.94

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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.