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Finding the Fourth Proportional to 351,671.25, 525,999.78 and 326,144.88

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Solution

The fourth proportional to 351,671.25, 525,999.78 and 326,144.88 is: 487,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,671.25 : 525,999.78 = 326,144.88 : x
  2. Step 2: Convert to fraction form
    351,671.25/525,999.78 = 326,144.88/x
  3. Step 3: Cross multiply
    351,671.25x = 525,999.78 × 326,144.88
  4. Step 4: Simplify right side
    351,671.25x = 171,552,135,128.13
  5. Step 5: Solve for x
    x = 171,552,135,128.13/351,671.25
  6. Step 6: Final answer
    x = 487,819.62

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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.