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Finding the Fourth Proportional to 348,672.69, 522,720.79 and 132,486.67

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Solution

The fourth proportional to 348,672.69, 522,720.79 and 132,486.67 is: 198,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,672.69 : 522,720.79 = 132,486.67 : x
  2. Step 2: Convert to fraction form
    348,672.69/522,720.79 = 132,486.67/x
  3. Step 3: Cross multiply
    348,672.69x = 522,720.79 × 132,486.67
  4. Step 4: Simplify right side
    348,672.69x = 69,253,536,806.87
  5. Step 5: Solve for x
    x = 69,253,536,806.87/348,672.69
  6. Step 6: Final answer
    x = 198,620.48

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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.