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Finding the Fourth Proportional to 585,889.12, 808,540.68 and 331,255.36

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Solution

The fourth proportional to 585,889.12, 808,540.68 and 331,255.36 is: 457,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,889.12 : 808,540.68 = 331,255.36 : x
  2. Step 2: Convert to fraction form
    585,889.12/808,540.68 = 331,255.36/x
  3. Step 3: Cross multiply
    585,889.12x = 808,540.68 × 331,255.36
  4. Step 4: Simplify right side
    585,889.12x = 267,833,434,028.05
  5. Step 5: Solve for x
    x = 267,833,434,028.05/585,889.12
  6. Step 6: Final answer
    x = 457,140.14

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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.