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Finding the Fourth Proportional to 404,796.60, 607,562.10 and 205,255.80

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Solution

The fourth proportional to 404,796.60, 607,562.10 and 205,255.80 is: 308,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,796.60 : 607,562.10 = 205,255.80 : x
  2. Step 2: Convert to fraction form
    404,796.60/607,562.10 = 205,255.80/x
  3. Step 3: Cross multiply
    404,796.60x = 607,562.10 × 205,255.80
  4. Step 4: Simplify right side
    404,796.60x = 124,705,644,885.18
  5. Step 5: Solve for x
    x = 124,705,644,885.18/404,796.60
  6. Step 6: Final answer
    x = 308,069.89

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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.