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Finding the Fourth Proportional to 325,391.88, 448,809.31 and 298,620.84

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Solution

The fourth proportional to 325,391.88, 448,809.31 and 298,620.84 is: 411,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,391.88 : 448,809.31 = 298,620.84 : x
  2. Step 2: Convert to fraction form
    325,391.88/448,809.31 = 298,620.84/x
  3. Step 3: Cross multiply
    325,391.88x = 448,809.31 × 298,620.84
  4. Step 4: Simplify right side
    325,391.88x = 134,023,813,152.02
  5. Step 5: Solve for x
    x = 134,023,813,152.02/325,391.88
  6. Step 6: Final answer
    x = 411,884.32

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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.