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Finding the Fourth Proportional to 539,104.60, 808,851.30 and 519,664.60

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Solution

The fourth proportional to 539,104.60, 808,851.30 and 519,664.60 is: 779,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,104.60 : 808,851.30 = 519,664.60 : x
  2. Step 2: Convert to fraction form
    539,104.60/808,851.30 = 519,664.60/x
  3. Step 3: Cross multiply
    539,104.60x = 808,851.30 × 519,664.60
  4. Step 4: Simplify right side
    539,104.60x = 420,331,387,273.98
  5. Step 5: Solve for x
    x = 420,331,387,273.98/539,104.60
  6. Step 6: Final answer
    x = 779,684.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.