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Finding the Fourth Proportional to 439,671.30, 659,377.35 and 173,343.30

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Solution

The fourth proportional to 439,671.30, 659,377.35 and 173,343.30 is: 259,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,671.30 : 659,377.35 = 173,343.30 : x
  2. Step 2: Convert to fraction form
    439,671.30/659,377.35 = 173,343.30/x
  3. Step 3: Cross multiply
    439,671.30x = 659,377.35 × 173,343.30
  4. Step 4: Simplify right side
    439,671.30x = 114,298,645,794.26
  5. Step 5: Solve for x
    x = 114,298,645,794.26/439,671.30
  6. Step 6: Final answer
    x = 259,963.85

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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.