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Finding the Fourth Proportional to 346,450.60, 478,431.99 and 327,581.58

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Solution

The fourth proportional to 346,450.60, 478,431.99 and 327,581.58 is: 452,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,450.60 : 478,431.99 = 327,581.58 : x
  2. Step 2: Convert to fraction form
    346,450.60/478,431.99 = 327,581.58/x
  3. Step 3: Cross multiply
    346,450.60x = 478,431.99 × 327,581.58
  4. Step 4: Simplify right side
    346,450.60x = 156,725,505,568.84
  5. Step 5: Solve for x
    x = 156,725,505,568.84/346,450.60
  6. Step 6: Final answer
    x = 452,374.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.