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Finding the Fourth Proportional to 474,693.65, 655,077.95 and 259,847.31

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Solution

The fourth proportional to 474,693.65, 655,077.95 and 259,847.31 is: 358,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,693.65 : 655,077.95 = 259,847.31 : x
  2. Step 2: Convert to fraction form
    474,693.65/655,077.95 = 259,847.31/x
  3. Step 3: Cross multiply
    474,693.65x = 655,077.95 × 259,847.31
  4. Step 4: Simplify right side
    474,693.65x = 170,220,241,848.58
  5. Step 5: Solve for x
    x = 170,220,241,848.58/474,693.65
  6. Step 6: Final answer
    x = 358,589.68

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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.