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Finding the Fourth Proportional to 661,654.77, 992,586 and 282,577.44

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Solution

The fourth proportional to 661,654.77, 992,586 and 282,577.44 is: 423,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,654.77 : 992,586 = 282,577.44 : x
  2. Step 2: Convert to fraction form
    661,654.77/992,586 = 282,577.44/x
  3. Step 3: Cross multiply
    661,654.77x = 992,586 × 282,577.44
  4. Step 4: Simplify right side
    661,654.77x = 280,482,410,859.84
  5. Step 5: Solve for x
    x = 280,482,410,859.84/661,654.77
  6. Step 6: Final answer
    x = 423,910.51

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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.