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Finding the Fourth Proportional to 351,144.40, 526,716.60 and 345,895.60

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Solution

The fourth proportional to 351,144.40, 526,716.60 and 345,895.60 is: 518,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,144.40 : 526,716.60 = 345,895.60 : x
  2. Step 2: Convert to fraction form
    351,144.40/526,716.60 = 345,895.60/x
  3. Step 3: Cross multiply
    351,144.40x = 526,716.60 × 345,895.60
  4. Step 4: Simplify right side
    351,144.40x = 182,188,954,386.96
  5. Step 5: Solve for x
    x = 182,188,954,386.96/351,144.40
  6. Step 6: Final answer
    x = 518,843.40

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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.