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Finding the Fourth Proportional to 681,665.97, 940,705.62 and 375,754.17

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Solution

The fourth proportional to 681,665.97, 940,705.62 and 375,754.17 is: 518,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,665.97 : 940,705.62 = 375,754.17 : x
  2. Step 2: Convert to fraction form
    681,665.97/940,705.62 = 375,754.17/x
  3. Step 3: Cross multiply
    681,665.97x = 940,705.62 × 375,754.17
  4. Step 4: Simplify right side
    681,665.97x = 353,474,059,457.44
  5. Step 5: Solve for x
    x = 353,474,059,457.44/681,665.97
  6. Step 6: Final answer
    x = 518,544.38

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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.