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Finding the Fourth Proportional to 439,622.80, 659,304.60 and 173,294.80

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Solution

The fourth proportional to 439,622.80, 659,304.60 and 173,294.80 is: 259,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,622.80 : 659,304.60 = 173,294.80 : x
  2. Step 2: Convert to fraction form
    439,622.80/659,304.60 = 173,294.80/x
  3. Step 3: Cross multiply
    439,622.80x = 659,304.60 × 173,294.80
  4. Step 4: Simplify right side
    439,622.80x = 114,254,058,796.08
  5. Step 5: Solve for x
    x = 114,254,058,796.08/439,622.80
  6. Step 6: Final answer
    x = 259,891.11

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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.