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Finding the Fourth Proportional to 471,157.43, 704,952.75 and 279,134.98

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Solution

The fourth proportional to 471,157.43, 704,952.75 and 279,134.98 is: 417,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,157.43 : 704,952.75 = 279,134.98 : x
  2. Step 2: Convert to fraction form
    471,157.43/704,952.75 = 279,134.98/x
  3. Step 3: Cross multiply
    471,157.43x = 704,952.75 × 279,134.98
  4. Step 4: Simplify right side
    471,157.43x = 196,776,971,772.20
  5. Step 5: Solve for x
    x = 196,776,971,772.20/471,157.43
  6. Step 6: Final answer
    x = 417,645.91

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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.