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Finding the Fourth Proportional to 590,428.78, 814,765.50 and 328,797.58

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Solution

The fourth proportional to 590,428.78, 814,765.50 and 328,797.58 is: 453,726.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,428.78 : 814,765.50 = 328,797.58 : x
  2. Step 2: Convert to fraction form
    590,428.78/814,765.50 = 328,797.58/x
  3. Step 3: Cross multiply
    590,428.78x = 814,765.50 × 328,797.58
  4. Step 4: Simplify right side
    590,428.78x = 267,892,918,949.68
  5. Step 5: Solve for x
    x = 267,892,918,949.68/590,428.78
  6. Step 6: Final answer
    x = 453,726.06

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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.