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Finding the Fourth Proportional to 555,604.44, 766,731.60 and 300,956.26

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Solution

The fourth proportional to 555,604.44, 766,731.60 and 300,956.26 is: 415,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,604.44 : 766,731.60 = 300,956.26 : x
  2. Step 2: Convert to fraction form
    555,604.44/766,731.60 = 300,956.26/x
  3. Step 3: Cross multiply
    555,604.44x = 766,731.60 × 300,956.26
  4. Step 4: Simplify right side
    555,604.44x = 230,752,674,759.82
  5. Step 5: Solve for x
    x = 230,752,674,759.82/555,604.44
  6. Step 6: Final answer
    x = 415,318.27

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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.