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Finding the Fourth Proportional to 494,666.60, 741,754.18 and 157,663.40

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Solution

The fourth proportional to 494,666.60, 741,754.18 and 157,663.40 is: 236,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,666.60 : 741,754.18 = 157,663.40 : x
  2. Step 2: Convert to fraction form
    494,666.60/741,754.18 = 157,663.40/x
  3. Step 3: Cross multiply
    494,666.60x = 741,754.18 × 157,663.40
  4. Step 4: Simplify right side
    494,666.60x = 116,947,485,983.01
  5. Step 5: Solve for x
    x = 116,947,485,983.01/494,666.60
  6. Step 6: Final answer
    x = 236,416.78

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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.