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Finding the Fourth Proportional to 474,690.65, 655,073.80 and 259,844.31

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Solution

The fourth proportional to 474,690.65, 655,073.80 and 259,844.31 is: 358,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,690.65 : 655,073.80 = 259,844.31 : x
  2. Step 2: Convert to fraction form
    474,690.65/655,073.80 = 259,844.31/x
  3. Step 3: Cross multiply
    474,690.65x = 655,073.80 × 259,844.31
  4. Step 4: Simplify right side
    474,690.65x = 170,217,198,910.47
  5. Step 5: Solve for x
    x = 170,217,198,910.47/474,690.65
  6. Step 6: Final answer
    x = 358,585.54

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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.