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Finding the Fourth Proportional to 704,843.56, 971,343.30 and 691,889.32

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Solution

The fourth proportional to 704,843.56, 971,343.30 and 691,889.32 is: 953,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,843.56 : 971,343.30 = 691,889.32 : x
  2. Step 2: Convert to fraction form
    704,843.56/971,343.30 = 691,889.32/x
  3. Step 3: Cross multiply
    704,843.56x = 971,343.30 × 691,889.32
  4. Step 4: Simplify right side
    704,843.56x = 672,062,055,323.56
  5. Step 5: Solve for x
    x = 672,062,055,323.56/704,843.56
  6. Step 6: Final answer
    x = 953,491.09

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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.