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Finding the Fourth Proportional to 574,456.68, 792,781.62 and 319,802.28

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Solution

The fourth proportional to 574,456.68, 792,781.62 and 319,802.28 is: 441,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,456.68 : 792,781.62 = 319,802.28 : x
  2. Step 2: Convert to fraction form
    574,456.68/792,781.62 = 319,802.28/x
  3. Step 3: Cross multiply
    574,456.68x = 792,781.62 × 319,802.28
  4. Step 4: Simplify right side
    574,456.68x = 253,533,369,618.09
  5. Step 5: Solve for x
    x = 253,533,369,618.09/574,456.68
  6. Step 6: Final answer
    x = 441,344.63

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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.