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Finding the Fourth Proportional to 555,731.74, 766,910.62 and 301,082.94

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Solution

The fourth proportional to 555,731.74, 766,910.62 and 301,082.94 is: 415,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,731.74 : 766,910.62 = 301,082.94 : x
  2. Step 2: Convert to fraction form
    555,731.74/766,910.62 = 301,082.94/x
  3. Step 3: Cross multiply
    555,731.74x = 766,910.62 × 301,082.94
  4. Step 4: Simplify right side
    555,731.74x = 230,903,704,186.82
  5. Step 5: Solve for x
    x = 230,903,704,186.82/555,731.74
  6. Step 6: Final answer
    x = 415,494.90

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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.