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Finding the Fourth Proportional to 555,103.19, 766,060.97 and 340,201.73

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Solution

The fourth proportional to 555,103.19, 766,060.97 and 340,201.73 is: 469,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,103.19 : 766,060.97 = 340,201.73 : x
  2. Step 2: Convert to fraction form
    555,103.19/766,060.97 = 340,201.73/x
  3. Step 3: Cross multiply
    555,103.19x = 766,060.97 × 340,201.73
  4. Step 4: Simplify right side
    555,103.19x = 260,615,261,748.17
  5. Step 5: Solve for x
    x = 260,615,261,748.17/555,103.19
  6. Step 6: Final answer
    x = 469,489.76

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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.