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Finding the Fourth Proportional to 439,665.98, 659,055.90 and 173,323.40

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Solution

The fourth proportional to 439,665.98, 659,055.90 and 173,323.40 is: 259,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,665.98 : 659,055.90 = 173,323.40 : x
  2. Step 2: Convert to fraction form
    439,665.98/659,055.90 = 173,323.40/x
  3. Step 3: Cross multiply
    439,665.98x = 659,055.90 × 173,323.40
  4. Step 4: Simplify right side
    439,665.98x = 114,229,809,378.06
  5. Step 5: Solve for x
    x = 114,229,809,378.06/439,665.98
  6. Step 6: Final answer
    x = 259,810.43

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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.