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Finding the Fourth Proportional to 620,181.20, 930,105.74 and 170,795.27

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Solution

The fourth proportional to 620,181.20, 930,105.74 and 170,795.27 is: 256,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,181.20 : 930,105.74 = 170,795.27 : x
  2. Step 2: Convert to fraction form
    620,181.20/930,105.74 = 170,795.27/x
  3. Step 3: Cross multiply
    620,181.20x = 930,105.74 × 170,795.27
  4. Step 4: Simplify right side
    620,181.20x = 158,857,655,487.35
  5. Step 5: Solve for x
    x = 158,857,655,487.35/620,181.20
  6. Step 6: Final answer
    x = 256,147.17

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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.