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Finding the Fourth Proportional to 574,694.71, 793,021.93 and 320,069.59

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Solution

The fourth proportional to 574,694.71, 793,021.93 and 320,069.59 is: 441,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,694.71 : 793,021.93 = 320,069.59 : x
  2. Step 2: Convert to fraction form
    574,694.71/793,021.93 = 320,069.59/x
  3. Step 3: Cross multiply
    574,694.71x = 793,021.93 × 320,069.59
  4. Step 4: Simplify right side
    574,694.71x = 253,822,203,996.11
  5. Step 5: Solve for x
    x = 253,822,203,996.11/574,694.71
  6. Step 6: Final answer
    x = 441,664.42

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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.