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Finding the Fourth Proportional to 476,577.56, 715,161.80 and 276,991.94

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Solution

The fourth proportional to 476,577.56, 715,161.80 and 276,991.94 is: 415,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,577.56 : 715,161.80 = 276,991.94 : x
  2. Step 2: Convert to fraction form
    476,577.56/715,161.80 = 276,991.94/x
  3. Step 3: Cross multiply
    476,577.56x = 715,161.80 × 276,991.94
  4. Step 4: Simplify right side
    476,577.56x = 198,094,056,876.28
  5. Step 5: Solve for x
    x = 198,094,056,876.28/476,577.56
  6. Step 6: Final answer
    x = 415,659.64

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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.