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Finding the Fourth Proportional to 585,915.69, 808,585.43 and 331,251.69

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Solution

The fourth proportional to 585,915.69, 808,585.43 and 331,251.69 is: 457,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,915.69 : 808,585.43 = 331,251.69 : x
  2. Step 2: Convert to fraction form
    585,915.69/808,585.43 = 331,251.69/x
  3. Step 3: Cross multiply
    585,915.69x = 808,585.43 × 331,251.69
  4. Step 4: Simplify right side
    585,915.69x = 267,845,288,540.62
  5. Step 5: Solve for x
    x = 267,845,288,540.62/585,915.69
  6. Step 6: Final answer
    x = 457,139.64

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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.