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Finding the Fourth Proportional to 623,708.25, 860,554.73 and 365,446.44

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Solution

The fourth proportional to 623,708.25, 860,554.73 and 365,446.44 is: 504,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,708.25 : 860,554.73 = 365,446.44 : x
  2. Step 2: Convert to fraction form
    623,708.25/860,554.73 = 365,446.44/x
  3. Step 3: Cross multiply
    623,708.25x = 860,554.73 × 365,446.44
  4. Step 4: Simplify right side
    623,708.25x = 314,486,662,503.66
  5. Step 5: Solve for x
    x = 314,486,662,503.66/623,708.25
  6. Step 6: Final answer
    x = 504,220.78

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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.