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Finding the Fourth Proportional to 620,454.75, 930,735.73 and 171,175.62

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Solution

The fourth proportional to 620,454.75, 930,735.73 and 171,175.62 is: 256,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,454.75 : 930,735.73 = 171,175.62 : x
  2. Step 2: Convert to fraction form
    620,454.75/930,735.73 = 171,175.62/x
  3. Step 3: Cross multiply
    620,454.75x = 930,735.73 × 171,175.62
  4. Step 4: Simplify right side
    620,454.75x = 159,319,262,076.75
  5. Step 5: Solve for x
    x = 159,319,262,076.75/620,454.75
  6. Step 6: Final answer
    x = 256,778.21

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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.