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Finding the Fourth Proportional to 620,538.75, 930,861.74 and 171,259.70

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Solution

The fourth proportional to 620,538.75, 930,861.74 and 171,259.70 is: 256,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,538.75 : 930,861.74 = 171,259.70 : x
  2. Step 2: Convert to fraction form
    620,538.75/930,861.74 = 171,259.70/x
  3. Step 3: Cross multiply
    620,538.75x = 930,861.74 × 171,259.70
  4. Step 4: Simplify right side
    620,538.75x = 159,419,096,823.27
  5. Step 5: Solve for x
    x = 159,419,096,823.27/620,538.75
  6. Step 6: Final answer
    x = 256,904.34

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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.