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Finding the Fourth Proportional to 371,694.06, 512,652.42 and 250,643.64

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Solution

The fourth proportional to 371,694.06, 512,652.42 and 250,643.64 is: 345,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,694.06 : 512,652.42 = 250,643.64 : x
  2. Step 2: Convert to fraction form
    371,694.06/512,652.42 = 250,643.64/x
  3. Step 3: Cross multiply
    371,694.06x = 512,652.42 × 250,643.64
  4. Step 4: Simplify right side
    371,694.06x = 128,493,068,603.61
  5. Step 5: Solve for x
    x = 128,493,068,603.61/371,694.06
  6. Step 6: Final answer
    x = 345,695.78

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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.