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Finding the Fourth Proportional to 439,946.80, 659,790.60 and 173,618.80

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Solution

The fourth proportional to 439,946.80, 659,790.60 and 173,618.80 is: 260,377.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,946.80 : 659,790.60 = 173,618.80 : x
  2. Step 2: Convert to fraction form
    439,946.80/659,790.60 = 173,618.80/x
  3. Step 3: Cross multiply
    439,946.80x = 659,790.60 × 173,618.80
  4. Step 4: Simplify right side
    439,946.80x = 114,552,052,223.28
  5. Step 5: Solve for x
    x = 114,552,052,223.28/439,946.80
  6. Step 6: Final answer
    x = 260,377.06

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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.