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Finding the Fourth Proportional to 585,468.90, 807,926.40 and 330,814.62

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Solution

The fourth proportional to 585,468.90, 807,926.40 and 330,814.62 is: 456,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,468.90 : 807,926.40 = 330,814.62 : x
  2. Step 2: Convert to fraction form
    585,468.90/807,926.40 = 330,814.62/x
  3. Step 3: Cross multiply
    585,468.90x = 807,926.40 × 330,814.62
  4. Step 4: Simplify right side
    585,468.90x = 267,273,865,003.97
  5. Step 5: Solve for x
    x = 267,273,865,003.97/585,468.90
  6. Step 6: Final answer
    x = 456,512.49

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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.